There's nothing like a crazy rumour to get the fandom in a tizzy. Whether it's outlandish casting announcements or weird urban legends about the making of a film, you can always depend on the fictional stories created in order to make the other fictional stories more interesting to liven things up, no matter how ridiculous. That said, no matter how implausible or unbelievable a rumour is, there's something strangely comforting about being drawn into them and believing the lie, at least until it's ruled out completely by a figure of authority. Say, the actor who's playing the character you've heard participates in a breakdance sequence on the bridge of a starship, or the director who you suspect is secretly cross-dressing on set. Throughout film history there have been crazy stories about both the production and legacy of many films, but what's crazier is how long they've been able to seep in the public consciousness before being excised by the silver spoon of truth. Here are 10 of the most unforgettable Hollywood rumours that have to be seen to be disbelieved, but... then again, what if they're true? You never know, there could be a secret version of Star Wars out there where the strangest thing happens...