Casting directors probably have one of the most important jobs in Hollywood. When it comes to getting somebody right for a role, all sorts of things have to be taken into consideration, like if they have the right look, or if they’re a cokehead who might just not turn up on set or whether or not they’re Jennifer Lawrence (so hot right now). Sometimes, casting directors take a chance and get it spot on – Heath Ledger as The Joker, anyone? Other times, they not only get it wrong. They get it really, really, weird.