Dwayne Johnson undergoes his most dramatic on-screen transformation yet in the first trailer for “The Smashing Machine,” a biopic about two-time UFC heavyweight champ Mark Kerr. A24 pulled the curtain back on the drama Tuesday morning.

Dwayne Johnson leads A24 's The Smashing Machine as MMA icon and UFC champion Mark Kerr, with the first teaser trailer out today.

Dwayne Johnson is taking a turn into the dramatic in the new A24 drama "The Smashing Machine," and the first trailer for the film shows the blockbuster movie star conjuring a performance of a very different sort.