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 "The Rock" Johnson transforms into MMA and UFC fighter Mark Kerr in Benny Safdie's A24 biopic "The Smashing Machine," releasing this fall.

The long-awaited trailer has arrived for A24’s The Smashing Machine, a prestige swing for Dwayne Johnson, one of the biggest movie stars in the world known for blockbusters and