Tom Hardy
Hardy has played a ton of "strong man" roles over the years. But, you wouldn't believe what he had to go through to depict Britain's most dangerous prisoner...
Enter: Bronson
Hardy put on 40 pounds of muscle in just five weeks. He only did pushups, sit-ups, and resistance training. You know, prison workouts. He also ate only chicken and rice, as well as a ton of ice cream to start bulking up.