How do actors make such dramatic transformations? How do they eat and train? Are steroids involved? We ask the experts.
Hollywood's go-to guy for sci-fi and action thrillers opens up about movie muscle, steroids, and stereotypes in this exclusive interview.
For his title role in American Sniper, Bradley Cooper gained 37 pounds of lean mass. Here's the exact workout and supplement plan he used to do it.
Matt Damon has made some amazing physique transformations over the years with the help of trainer Jason Walsh. Here's an inside peek into how they do it.
For her new movie, Battle of the Sexes, the actress hit the weights and packed in the protein. Trainer Jason Walsh outlines how she did it.