Robert De Niro
De Niro completely transformed his body in the 1980 film, Raging Bull. This movie was about an Italian boxer's lifestyle changes over the course of 30 years. Over the course of filming, De Niro lost and gained close to 60 pounds...
Was it Worth It?
De Niro had a boxer's body for most of the movie, but halfway through production, he was flown to Italy and tasked with eating to his stomach's limit every day. He ate hundreds of plates of pasta and giant steaks daily. When he came back, he was a doughy, aged Italian man.