American History X by Edward Norton
Edward Norton wasn’t a household name until he starred in American History X. He had appeared in a few films, but no one could have guessed that his portrayal of the rampaging neo-Nazi skinhead Derek Vinyard would be so iconic. How did Norton, who appeared to have been training weights for years, go from being skinny to becoming a musclebound hulk? In order to grow muscle, he ate a lot of protein and performed several squats, presses, and other activities. To better portray himself as a fearsome gang leader, Norton put on 30 pounds of muscle.