Irving Rosenfeld – Christian Bale
It’s time to discuss another method actor! Like Jared Leto and Gary Oldman, Christian Bale entirely becomes his characters. This includes drastic weight changes and remaining in character accents for lengthy periods.
To become con artist Irving Rosenfeld in 2013’s American Hustle, the English celeb gained 43 pounds. He later explained that his weight gain was due to “. . . eating lots of doughnuts, a whole lot of cheeseburgers, and whatever [he] could get [his] hands on.” In other words, he ate anything edible that came within his proximity.