I watched "The Machinist" tonight, and it's a really good movie, except it freaked me out.
Believe it or not, but Christian Bale played in "Batman Begins" right after "The Machinist", and what he put his body through is really crazy. Compare the following snapshots:
Imdb writes:
The producers of the film claim that Christian Bale dropped from about 180 pounds in weight down to about 120 pounds in weight to make this film. They also claim that Bale actually wanted to drop down to 100 pounds, but that they would not let him go below 120 out of fear that his health could be in too much danger if he did. His diet consisted of one can of tuna and an apple per day. His 63-pound weight loss is said to be a record for any actor for a movie role. He regained the weight in time for his role in Batman Begins