Dwayne ‘The Rock’ Johnson reveals the explanation behind his latest slim-down on the press tour for ‘The Smashing Machine’ hitting theaters on Oct. 3. The actor and his co-star, Emily Blunt, sit down with ET’s Kevin Frazier to debate the Oscar-buzzworthy film, which obtained a 15-minute standing ovation on the Venice Film Festival. Johnson performs real-life MMA and UFC champion Mark Ker within the biopic.
