Mr Bale is widely known as the king of metamorphosizing for specific roles. In The Machinist, the actor played the role of Trevor Reznik, a machinist with a severe case of insomnia. The character’s insomnia inspires some drastic weight-loss. Bale needed to look emaciated, the actor went on to lose 63 pounds. For almost four months prior to shooting the actor ate only one can of tuna fish and one apple per day.