The Smashing Machine Is Not Really About Fighting – It’s About What Strength Costs

Dwayne Johnson has spent much of his movie career playing men who rarely need to question whether they can win a fight. His characters enter rooms with physical certainty, survive impossible situations, trade jokes while buildings collapse around them, and usually leave with their confidence intact. The Smashing Machine takes that familiar image and turns it against him.

Benny Safdie’s 2025 film casts Johnson as Mark Kerr, one of mixed martial arts’ most feared early stars. On paper, the pairing sounds almost too obvious. A former professional wrestler with an enormous physique plays a gigantic MMA fighter nicknamed “The Smashing Machine.” In practice, Safdie is interested in almost everything except the obvious version of that movie.

The fights matter, but domination is not the point. Kerr’s body is powerful enough to overwhelm elite opponents while proving almost useless against addiction, insecurity, pain, dependency, and the psychological shock of discovering that he can lose. Johnson’s size becomes less a symbol of invincibility than a shell around a man who has little idea what to do when physical strength stops solving his problems.

That tension gives The Smashing Machine a reach beyond MMA biography. The movie is about a fighter, but it is equally about the identities people construct around success. It asks what happens when someone becomes so closely identified with winning that failure begins to feel like personal extinction.

It also arrives at a fascinating point in Johnson’s career. Audiences know his rhythms. They know the raised eyebrow, the enormous grin, the immaculate confidence and the sense that even his fictional setbacks are temporary obstacles on the route toward another victory. Safdie does not simply hide those qualities under prosthetics. He makes viewers wait for them and gradually realize that they are not coming.

The result is one of the strangest contradictions in Johnson’s filmography: he becomes more interesting by appearing less powerful.

The Rock Meets a Man He Cannot Turn Into a Superhero

The Smashing Machine tells the story of Mark Kerr during a period when mixed martial arts had not yet become the polished global entertainment product audiences recognize today. Safdie wrote and directed the film, with Emily Blunt playing Kerr’s partner, Dawn Staples. Ryan Bader appears as fellow fighter Mark Coleman, while real combat-sports figures populate a world designed to feel closer to recorded memory than Hollywood reconstruction. A24 describes the film simply as the story of legendary MMA and UFC fighter Mark Kerr, but that description barely touches what Safdie is attempting.

Johnson’s physical transformation understandably received much of the early attention. The prosthetics change his face, while extensive training recreates Kerr’s unusually thick neck, traps, shoulders, and heavyweight frame. Johnson reportedly spent months modifying an already extraordinary physique to resemble Kerr more closely.

The more consequential transformation happens when Johnson starts speaking.

Kerr can sound gentle, almost timid, when he is outside competition. He seeks reassurance. He becomes frustrated by situations that cannot be physically controlled. He can move from warmth to irritation without the reassuring emotional logic audiences expect from a traditional sports hero.

That quality existed in the real Kerr as well. His public image depended on extraordinary violence inside competition, yet the contrast between the fighter and the man became central to the 2002 HBO documentary The Smashing Machine, which followed Kerr and Mark Coleman through the early MMA world and exposed the physical and personal damage behind professional fighting.

Safdie understands that casting Johnson creates another version of the same contradiction.

Johnson has spent decades building one of entertainment’s most recognizable identities. “The Rock” began as a wrestling persona, but it eventually became something larger than professional wrestling. It became a commercial language: strength, confidence, discipline, humor, size, control. Even when Johnson plays vulnerable characters, audiences carry that persona into the theater. Mark Kerr had his own version of it.

“The Smashing Machine” was not just a nickname. It described what audiences saw when Kerr competed. His wrestling pedigree, strength and aggressive style made him appear brutally suited to the emerging sport. He won the heavyweight tournaments at UFC 14 and UFC 15, defeating four opponents across those events. The UFC later recognized him as one of only five athletes to win multiple UFC tournaments from that era. Kerr eventually moved to Japan’s PRIDE Fighting Championships, where he competed during one of the most important periods in the development of international MMA.

Both Kerr and Johnson therefore arrive in the film carrying identities built around exceptional physical capability. Safdie’s smartest decision is refusing to treat those identities as complete human beings.

Before MMA Became an Industry, Mark Kerr Was One of Its Monsters

Modern MMA arrives surrounded by infrastructure. Fighters compete under unified rules, appear in heavily promoted events, build social-media audiences, negotiate sponsorships, speak to specialized media and train inside gyms built specifically around multiple combat disciplines. The UFC has become a mainstream sports brand with an international audience. Mark Kerr competed in a much less settled world.

His rise came during the late 1990s, when mixed martial arts was still trying to define itself. Early UFC events had been sold partly through shock value. The attraction was not simply athletic competition; it was the question of what happened when specialists from different fighting disciplines faced each other under unusually permissive rules. Kerr entered that environment with elite wrestling credentials and frightening physical tools.

His early UFC results explain the reputation. At UFC 14, Kerr defeated Moti Horenstein and Dan Bobish to win the heavyweight tournament. At UFC 15, he dispatched Greg Stott and Dwayne Cason in a combined 70 seconds to win another tournament. Those performances made Kerr look less like an athlete struggling through competitive uncertainty and more like a problem the sport had not yet learned how to solve. Japan then became a major part of his story.

PRIDE Fighting Championships offered a different scale and atmosphere. Its events mixed elite competition with theatrical presentation, large crowds and a distinctly Japanese approach to combat-sports spectacle. Fighters who might still have been obscure to mainstream American audiences could become major figures there.

Kerr entered PRIDE while the promotion was building some of the mythology that later MMA fans would inherit. Mark Coleman, Kazushi Sakuraba, Antônio Rodrigo Nogueira, Wanderlei Silva, Igor Vovchanchyn and other fighters helped make the organization essential to the sport’s history.

That period matters because The Smashing Machine is not simply reconstructing old MMA fights. It is reconstructing a sport before everyone involved fully understands what it would eventually become. The difference can be seen in everything from presentation to athlete care.

Today, elite fighters still suffer serious injuries and face difficult decisions about pain management, recovery and career longevity. The late-1990s environment, however, offered fewer of the systems now associated with mature professional sports. Fighters moved between countries, promotions and rule sets while training methods evolved rapidly around them. Kerr’s body became both his livelihood and the source of much of his pain.

His struggles with painkillers consequently cannot be separated from his profession. The drug problem is not included merely because every biographical drama needs a dark second act. It exposes an uncomfortable contradiction at the center of combat sports: an athlete is paid because his body can absorb and deliver extraordinary punishment, while the same damage can eventually threaten his ability to function outside competition. Safdie refuses to turn that contradiction into a simple morality lesson.

Kerr does not become interesting because a famous athlete developed an addiction. He becomes interesting because the same qualities that helped create his success—obsession, physical tolerance, appetite for competition, the ability to push past normal limits—can become destructive when applied without boundaries. That makes his story particularly suited to Safdie.

The filmmaker has repeatedly been drawn to characters whose compulsions create their own momentum. The tension comes not from waiting for an external villain to arrive but from watching someone continue a behavior long after the audience recognizes where it may lead. MMA provides a literal arena for that idea.

The Anti-Rocky Sports Movie

Most sports movies teach audiences how to watch them very quickly. A gifted athlete rises. Something goes wrong. Confidence disappears. Training resumes. A final competition provides a chance at redemption. Winning may not solve everything, but the climactic contest usually converts personal growth into a visible result.

Rocky remains the obvious reference point, even though its ending is more nuanced than its imitators often remember. Later movies repeated the general architecture so frequently that audiences can recognize it almost immediately. The Smashing Machine keeps stepping away from that architecture.

Kerr can win and still be miserable. He can dominate another human being and return home without control over his relationship. Sobriety does not instantly transform him into a different person. Love does not automatically produce stability. Competition creates meaning, but it also magnifies his dependence on external proof that he is still the person everyone believes him to be. Safdie reinforces that approach through the way he photographs fighting.

The director has explained that he intentionally made the position of the camera noticeable during competition. Instead of shooting every exchange as an immersive action sequence, his crew built a visual system that acknowledged where cameras would realistically exist around a televised fight. Some scenes are viewed from outside the ring rather than edited exclusively around punches, takedowns and reactions. That distance changes the emotional function of the fights.

A conventional action movie wants viewers to feel each blow as an immediate spectacle. Safdie sometimes wants viewers to notice the strange environment surrounding the violence: officials, spectators, cameras, corners, ropes and waiting athletes. The fighter becomes part of a larger machine designed to watch him fight.

Safdie also mixes formats, including footage designed to resemble older video technology alongside 16mm material. He has said the opening fight was created with tube-style video cameras while other portions use 16mm, giving different parts of Kerr’s life distinct textures. The choice suits a story already shaped by documentary history.

Some biopics polish the past until every costume, car and room seems to announce the period. The Smashing Machine often feels more interested in imperfect memory. The changing textures evoke footage discovered in archives, old broadcasts and personal recordings. That approach also reduces the distance between the fictional Kerr and the documented one.

The original documentary remains important because Kerr’s life was already captured during moments most public figures would prefer to hide. Safdie therefore faces an unusual challenge. He cannot simply reveal that the terrifying fighter had private problems; viewers familiar with the documentary already know. Instead, the dramatic film asks actors to inhabit the uncomfortable spaces between those known events. Emily Blunt becomes essential here.

Dawn cannot function merely as the concerned partner waiting at home while the athlete pursues greatness. Her relationship with Kerr carries its own volatility, dependency, affection and hostility. Blunt later described the relationship as deeply codependent and marked by a shared attraction to chaos. She also explained that she spoke extensively with the real people involved while preparing for the role. That makes the domestic scenes another form of competition, although neither participant can truly win.

Arguments unfold without the clean rules of a ring. No referee separates anyone. No scoreboard explains who is ahead. Physical confidence provides little advantage when the problem is jealousy, dependency, resentment or fear.

The contrast is sometimes almost absurd. A man capable of terrifying trained fighters can become emotionally stranded in an ordinary room. The visual scale of Johnson’s body makes the contradiction sharper. He looks like someone designed to solve problems through force, yet most of the problems surrounding Kerr have no physical solution. At those moments, the movie becomes much less about MMA than it first appeared.

When the Strongest Body in the Room Becomes a Trap

Combat sports have always sold bodies as evidence. A fighter’s physique can suggest discipline, danger, endurance and preparation before a match even begins. Professional wrestling pushes that symbolism further by turning bodies into characters. Action movies then remove most competitive rules entirely, allowing stars to become exaggerated versions of physical control. Dwayne Johnson has moved through all three worlds.

His body helped establish him in wrestling. Wrestling helped establish his charisma. Hollywood then transformed both qualities into a movie-star brand recognizable across languages and genres. That history makes his casting unusually productive.

Another actor could have delivered a strong performance as Mark Kerr, but another actor would not bring decades of cultural expectations about Dwayne Johnson into every frame. Audiences have been trained to read Johnson’s size as reassurance. If he is present, someone capable is in charge. The Smashing Machine disconnects size from control.

Kerr can look enormous while feeling powerless. He can receive praise and remain insecure. He can command attention in an arena and fail to manage a conversation at home. The movie does not need to repeatedly explain the contradiction because Johnson’s physical presence communicates it.

That is where his career becomes part of the text. Johnson has spoken about The Smashing Machine as a project that allowed him to pursue something different from films surrounded by larger commercial obligations. In a later conversation with Brendan Fraser, he described making the movie as an “exhale” and connected it to a desire to follow his own creative ambition.

The statement matters because Johnson has often existed at the center of films designed around his persona.

A major franchise does not cast Dwayne Johnson and then ignore what audiences expect from Dwayne Johnson. His presence influences marketing, tone, action, comedy and character design. That is part of the reason movie stars become valuable.

Safdie uses the same familiarity for a different purpose. He takes the expectation of confidence and creates tension whenever it fails to appear. He takes the expectation of charm and lets conversations become uncomfortable. He takes an actor closely associated with control and puts him inside a character driven by compulsions.

Even the facial transformation serves more than simple resemblance. Prosthetics create a tiny delay in recognition. The viewer knows Johnson is there, but the familiar face no longer provides the usual shortcut to understanding the character.

For an actor who has spent years being instantly recognizable, partial disappearance can become a dramatic advantage. The movie also raises a broader question about masculinity without turning itself into a lecture.

Kerr belongs to a profession in which fear must be managed publicly. Pain is expected. Aggression can produce money and status. Physical hesitation may result in immediate defeat. Those conditions reward certain behaviors inside competition, but they do not necessarily provide a useful emotional language outside it.

A fighter can learn dozens of responses to an opponent’s movement while having very few responses to shame. That problem extends beyond professional athletes.

Many men are taught to interpret competence through measurable action: earn more, lift more, win more, tolerate more, complain less. Vulnerability can then feel less like an ordinary human condition than evidence that something has gone wrong. Kerr’s story pushes that idea to an extreme because his measurable abilities were exceptional. If the strongest man in the room still feels inadequate, another victory cannot permanently solve the problem.

The strangest scenes are therefore not necessarily the bloody ones. A quiet conversation can carry more danger because Kerr cannot rely on the skills that made him famous. The discomfort can sit in mundane spaces, surrounded by domestic clutter, cheap décor or rows of restaurant chairs rather than dramatic sporting iconography. That ordinariness matters. The movie keeps reminding viewers that public mythology eventually returns home.

What Does Winning Mean When Winning Becomes an Identity?

Mark Kerr’s career eventually produced a record far more complicated than the aura surrounding his early dominance. His professional history contains victories, defeats and a no-contest across a career that continued until 2009. The UFC inducted Kerr into its Hall of Fame Pioneer Wing in 2025, recognizing the place he occupies in the sport’s development.

That recognition creates a useful distance from the period portrayed by the film. Kerr is now remembered as a pioneer. During the events dramatized in The Smashing Machine, he did not have the benefit of knowing how history would categorize him. A loss was not part of a completed legacy. It was happening in the present, threatening an identity that had been constructed around domination. That difference explains why losing becomes so psychologically important.

Athletes regularly say that defeat teaches more than victory. Sports culture loves the phrase because it turns failure into another stage of eventual success. The lesson is comfortable as long as losing eventually contributes to winning again. Safdie seems interested in something harder. What if losing simply hurts? What if there is no immediate lesson? What if defeat exposes a weakness instead of creating a motivational montage? Those questions help separate The Smashing Machine from the more reassuring versions of sports biography.

The film does not deny the satisfaction of competition. Nor does it treat MMA as a primitive activity that enlightened viewers should reject. Safdie clearly respects the fighters, the relationships around the sport and the strange beauty of people committing themselves completely to a difficult pursuit. He simply refuses to confuse toughness with emotional completeness.

That distinction may explain why the film can feel quieter than audiences expecting a Dwayne Johnson MMA movie might anticipate. Emily Blunt herself later described it as surprisingly intimate and fragile despite the violence surrounding the characters. The film’s release created another interesting contradiction.

Safdie won the Silver Lion for Best Director at the 2025 Venice Film Festival, where he described the movie as an exercise in empathy. Yet its commercial theatrical run was relatively modest for a project starring one of the world’s most recognizable movie stars. Box Office Mojo reports roughly $21.1 million in worldwide grosses, including about $11.4 million domestically. Those numbers should not become another scoreboard used to define the film.

They do, however, underline the risk involved in changing what an audience expects from a star. Someone buying a ticket for a huge Dwayne Johnson fighting movie could encounter something intentionally stranger, smaller and more uncomfortable. That mismatch may become part of the movie’s long-term appeal.

Actors with powerful personas often produce their most interesting work when filmmakers stop using those personas literally. Adam Sandler’s nervous energy became frightening in Uncut Gems. Robin Williams’ warmth could become unsettling when redirected. Robert Pattinson deliberately complicated the celebrity identity created around him by Twilight.

Johnson does something similar here, although his obstacle is unusually large because “The Rock” has become almost inseparable from the person playing him.

The Smashing Machine does not destroy that persona. It reveals the limitations of it. Strength remains impressive. Discipline remains valuable. Winning still matters to an athlete. None of those things provide immunity from being human.

That is why Mark Kerr turns out to be such a compelling role for Dwayne Johnson. The casting initially appears to depend on their similarities: wrestling, combat sports, massive physiques and public identities built around physical dominance. The movie becomes richer through their differences.

Johnson eventually transformed wrestling fame into extraordinary control over his career, image and businesses. Kerr’s story captures a period when control repeatedly escaped him.

Placing one inside the other creates an unusual kind of movie-star performance. Johnson does not need to convince viewers that he is strong. Everyone already knows. He has to convince them that strength might not be enough. That idea finally gives the title its real weight.

“The Smashing Machine” sounds like the name of something unstoppable. It promises force without hesitation, damage without consequence and a body capable of continuing indefinitely. Mark Kerr was never actually a machine. Neither is Dwayne Johnson.

Safdie builds an entire movie around the distance between that public fantasy and the vulnerable person underneath it. The fights give the story its noise, but the quieter discovery matters more: the moment a man realizes that being able to defeat someone else and being able to live with himself are completely different skills.