Actor Christian Bale has gone through weight transformation quite a few times for movie roles, but The Dark Knight star says he is done with such constant fluctuations. “I keep saying I’m done with it,” Bale, 45, said in an interview. “I really think I’m done with it, yeah!” The Vice actor sat down for an interview to promote his latest film, Ford v Ferrari, in which he slimmed down and lost 31kg to play race car driver Ken Miles. Even though Bale seems to be over the ups and downs of his weight transformations, his co-star Matt Damon was impressed watching it happen. “I had a great time watching him,” Damon. “He’s got [an] incredible monk-like discipline, like, when he went from Dick Cheney to this guy.” Before this role, the actor gained a ton of weight to play Dick Cheney in Vice.