"The Smashing Machine," starring Dwayne Johnson as MMA fighter Mark Kerr, opens in theaters Friday. Here's a list of other real-life fighters portrayed in film.

"The Smashing Machine," in theaters Friday, allows Dwayne Johnson to show vulnerability in portraying MMA fighter Mark Kerr in the biopic from Bennie Safdie.

"The Smashing Machine," starring Dwayne Johnson as MMA fighter Mark Kerr, opens in theaters Friday. Here's a list of other real-life fighters portrayed in film.

Once MMA’s fiercest heavyweight, Kerr spiralled into addiction. Two decades after The Smashing Machine, The Rock has revived his story for film

The Rock is rolling with his Oscar-ready sports drama \