Getting slimed from head to toe at the Nickelodeon Kids' Choice Awards in 2005 was "a lot of fun," says Depp. And the actor has earned a rep as a prankster: He planted whoopee cushions on the chairs of his Finding Neverland costars and gave Leonardo DiCaprio "disgusting things to smell" on the set of What's Eating Gilbert Grape, says director Lasse Hallstrom.