A film about a bloke who just wants his rug back, and honestly that's a cause worth fighting for.
Fun fact: "The word 'dude' is spoken roughly 160 times in the film, about once every 45 seconds."
Heath Ledger turned up, did that, and now every comic book villain is just trying to keep up.
Fun fact: "Heath Ledger locked himself in a hotel room for six weeks to develop the Joker's voice and mannerisms."