From playing the fit Batman, Christian Bale is now putting on weight in earnest to play former US Vice President Dick Cheney in his upcoming biopic. The actor looked barely unrecognisable as he attended the Toronto International Film Festival.

Bale says, he's "just been eating a lot of pies" in order to develop the proper body type and gain weight. The actor has gone through some shocking body transformations during his career, including losing 65 pounds and eating only an apple and a can of tuna a day for The Machinist, and later bulking up to play Batman in Christopher Nolan's trilogy.

The upcoming film, set to be directed by Adam McKay, is currently untitled and is yet to go on the floors. It will also star Steve Carell as Secretary of Defense Donald Rumsfeld, and Amy Adams as Lynne Cheney.