Christian Bale shed more than 60 pounds for his role in the 2004 psychological thriller, The Machinist, but according to his co-star, Michael Ironside, that dramatic weight loss wasn't even intentionally scripted.
Christian Bale went the other end of weight loss when he gained 43 pounds for his role in American Hustle (2013)
As Ironside explained in a recent interview, the writer behind The Machinist had written the part for someone significantly shorter and hadn't adjusted the weight description in the script to reflect Bale's six-foot stature but he welcomed the challenge.
"The writer is only about five-foot-six, and he put his own weights in," Ironside told TV show host Ricky Camilleri. "And then Chris did the film and Chris said, 'No, don't change the weights.
A still from The Machinist (2004)
I want to see if I make them.' So those weights he writes on the bathroom wall in the film are his actual weights in the film."
Bale survived on a diet of an apple and tuna to gain the thin frame in The Machinist.