The Most Shocking Transformations Actors Have Undergone for a Role

Whether it's Chris Pratt getting ripped for Guardians of the Galaxy or Renee Zellweger putting on a few pounds for Bridget Jones' Diary, many actors have transformed their bodies over the years for the sake of a coveted movie role—but some have done so in healthier ways than others. Between grueling training sessions and rigid eating plans, these celebs give a whole new meaning to method acting.