When "Monster" wrapped, however, Theron had very little time to get back to her normal shape for her next film, which was starting production three days later. "I was training three, four hours a day, barely eating, trying to lose the weight – I only had three weeks till we were shooting – and I still had a lot of emotional baggage in me," she told The Advocate.
To play the emaciated insomniac Trevor Reznik in the dark suspense thriller "The Machinist," Bale lost over 60 pounds from his normally 6-foot, 185-pound frame.
"I had been to a nutritionist and when I had got down to what she had told me was a healthy weight, I just went: 'You know what? I can go more than this. I can keep going.' So I lost another 20 pounds below what she said I should stop at," Bale told the BBC.
No one was more surprised than his director, Brad Anderson, who expected Bale to lose only 10 or 15 pounds.
"But no, he's one of those actors, he needs to immerse himself in a role. He becomes the guy," Anderson told the Knight Ridder News Service.
Immediately after finishing "The Machinist," Bale went to the opposite extreme to play the lead role in "Batman Begins." In five months, he went from 121 pounds to 220 before slimming back down to 180 by the time shooting began.