The Insane Body Transformations These Actors Went Through For Their Roles

Zac Efron

Efron has always been in pretty good shape, for what it's worth, as an actor. But, when he made his transition from Disney star into an adult star, he bulked up a little bit to play sex-appeal roles. Then, he got cast to play Brody in Baywatch...

The More You Know

Peter Ostrum, Charlie from Willy Wonka and the Chocolate Factory, never acted in another movie after that and is now a veterinarian.
Brad Pitt and Edward Norton actually learned how to make soap in Fight Club.
Orson Welles directed much of Citizen Kane from a wheelchair, after injuring himself on set.
O.J. Simpson was considered for the lead in "The Terminator".

Post originally appeared on Upbeat News.