De Niro made it tough on all actors when he transformed himself for the role he played in Raging Bull.
De Niro put it on again for The Untouchables. I heard that he ate 12 jelly donuts washed down with a six-pack every night before bed to put on the 60 lbs.
Jared Leto is the latest actor to transform himself, for the portrayal of Mark David Chapman in the upcoming film about Lennon's killer.
The instance that confuses me is Sally Struthers weight gain for those ads about starving 3rd world kids in the 80s. Maybe it was done so the children seemed even skinner by comparison?