Brace yourself. Dwayne “The Rock” Johnson has shed the blockbuster gloss and taken on the rawest, most unforgiving role of his career. In The Smashing Machine, a biographical A24 sports drama directed by Benny Safdie (Uncut Gems), Johnson steps into the bloodied shoes of Mark Kerr, a two-time UFC Heavyweight Champion whose life was as brutal outside the cage as it was inside it. Releasing globally on 3 October 2025, this film is not just a biopic — it’s a brawl with addiction, fame, and the dark side of legacy.
A True Story of Muscle, Mayhem, and Mental Demons
Mark Kerr was a dominant force in early mixed martial arts. Known for his sheer power and relentless grappling, he won tournaments in the UFC and PRIDE FC during the sport’s most feral, unregulated days. But behind the championships and cheers, Kerr struggled silently with opioid addiction, depression, and the psychological aftermath of combat sports.
The film captures these parallel narratives — triumph and torment — with clinical precision. It doesn’t just follow Kerr the fighter, but Kerr the broken man, stumbling through substance abuse and a disintegrating relationship. This isn’t a victory lap; it’s a sobering look into the cost of greatness.
The Rock Stripped Down
Forget the chiselled, indestructible action hero you’re used to. For this role, Dwayne Johnson is unrecognisable. From the buzzed head to the hunched posture and emotionally frayed expressions, Johnson completely transforms — both physically and psychologically. He’s bulked up in new ways, gone through gruelling MMA training, and embraced the quiet vulnerability of a man falling apart.
Johnson’s performance isn’t just strong; it’s dangerously intimate, tapping into a rage and sadness rarely seen from one of Hollywood’s most bankable stars. This might just be the performance that redefines his acting career.
Emily Blunt as Dawn Staples
Starring opposite Johnson is Emily Blunt, who plays Kerr’s wife Dawn Staples — a woman stuck between loving a man and watching him self-destruct. Her performance adds emotional nuance and weight, showcasing the collateral damage caused by addiction and toxic masculinity.
Their relationship — volatile, co-dependent, at times tender — forms the film’s emotional core. Safdie treats it with the same attention he gave to the chaos of Howard Ratner in Uncut Gems — raw, real, and never idealised.
Fighting Legends Portraying Fighting Legends
To ground the story in MMA authenticity, the cast features real-life fighters:
- Ryan Bader plays Mark Coleman, Kerr’s best friend and training partner
- Oleksandr Usyk plays Igor Vovchanchyn, one of Kerr’s fiercest rivals in PRIDE
- Bas Rutten makes a cameo as himself, adding yet another layer of realism
These additions aren’t just fan service — they help recreate the chaotic, no-holds-barred early years of professional fighting in terrifying detail.
A Benny Safdie Masterclass
Director Benny Safdie, operating solo this time without his brother Josh, brings the same nerve-jangling realism that defined Uncut Gems. Shot entirely on 16mm film, the aesthetic is deliberately grainy, drenched in sweat, blood, and fear. The tension doesn’t come from grand speeches or training montages — it comes from awkward silences, medical consultations, and the deafening sound of an IV drip in a hotel room.
The sound design is purposefully oppressive. Composer Nala Sinephro delivers an ambient, jazz-inflected score that contrasts the brutality onscreen, making every fight and every breakdown feel like a slow-motion car crash.
The Trailer: Pure Impact
The official trailer, released in April 2025, opens with Johnson shadowboxing in a dimly lit hotel bathroom, eyes bloodshot, hands shaking. It quickly spirals into chaos — fight footage from the early UFC, tense hospital scenes, aggressive press conferences, and a devastating moment where Blunt’s character screams, “You’re not even here anymore!”
It ends with Kerr lying on a locker room floor, staring at the ceiling as we hear: “They cheer when you smash people. But who helps put you back together?”
This isn’t sports entertainment. This is survival.
The Marketing Trick — Classic A24
In true A24 style, the marketing campaign for The Smashing Machine came with a twist. On 29 April 2025, an anonymous text message campaign launched with the phrase: “Need a hit?” — those who responded received cryptic voice messages of Johnson as Kerr, reciting lines from the film, alongside a link to the trailer. Within hours, #TheSmashingMachine was trending across X, Instagram, and Reddit.
Clever, dark, and perfectly aligned with the movie’s tone.
Release Info & Global Premiere
The Smashing Machine will premiere at the Venice Film Festival in September 2025, followed by a global cinema release on 3 October 2025 through A24.
Film Title: The Smashing Machine
Directed By: Benny Safdie
Starring: Dwayne Johnson, Emily Blunt, Ryan Bader, Oleksandr Usyk
Rating: R (expected)
Run Time: Approx. 125 minutes
Release Date: 3 October 2025
Why This Film Matters
In a post-glamour Hollywood landscape, The Smashing Machine is a return to uncomfortable truth. It doesn’t shy away from the real-life destruction that fame and expectation can cause. It avoids glorification and it doesn’t flinch.
Mark Kerr’s story is tragic. But it’s also a warning. A tale of how even the strongest fighters can become the weakest men when the lights dim. And Dwayne Johnson, of all people, might be the only actor powerful enough to carry that weight, yet vulnerable enough to let it break him.