Dwayne Johnson Transforms For Mark Kerr Biopic Debuting Venice

Dwayne Johnson underwent a dramatic transformation for his role as MMA legend Mark Kerr in the biopic The Smashing Machine, shedding around 27 kg and wearing 13 to 14 prosthetics daily to closely resemble Kerr. The film, directed by Benny Safdie and based on the 2002 documentary of the same name, explores Kerr's struggles with addiction, fame, and redemption. Johnson described the experience as deeply challenging and emotionally real, expressing fear about whether he could fully embody the role, which pushed him beyond his typical action-star persona. His preparation involved intensive cardio, mobility work, and a gut-focused diet, rather than his usual muscle-building routine, highlighting his commitment to authenticity. The Smashing Machine premiered at the 2025 Venice Film Festival, where Johnson's transformation received a standing ovation and widespread admiration. Johnson also reflected on Kerr's complex character and personal battles, which resonated with him due to his own experiences with addiction and loss among friends.