Daniel Radcliffe played the leading role in the film Jungle which was based on true events. The film tells the story of a group of friends who get lost in the Amazon rainforest. The role required Radcliffe to lose 33 lb in real life. The actor wanted to show how the main character was suffering in a way that was as real as possible, so he had to follow a very strict and difficult diet throughout the entire production. And right before the shoot, he didn’t eat anything for 2 days.