Matt Damon says gaining weight for his new movie is the most fun thing he's ever done. The "Informant!" actor - who plays overweight Mark Whitacre, an agricultural businessman who becomes an FBI informer, in the film - piled on 30lbs for the role, and delighted in gorging on calorific treats.
He said: "It was very, very easy to gain the weight. It was very, very fun, probably the most fun time I've had working because I didn't have to go to the gym after work and I just ate everything I could see."