Avatar 2 and 3
In what has to be the craziest rumor I've heard in some time — yes, crazier than anything Batman-related - someone has claimed that Avatar 3 will begin filming in November...which means that Avatar 2 already wrapped production earlier this year. Even granting James Cameron's penchant for insane levels of secrecy, there is absolutely no way that you could film the sequel to the most successful movie of all-time without anyone noticing, let alone without a single cast or crew member mentioning something about what they're currently working on. About all that you can say is that, if Cameron does intend on releasing the films in his previously suggested windows of 2014 and 2015, production probably will have to start in the relatively near future, but even then we haven't really gotten any sense from Cameron or anyone else that there's even a script for the sequels, let alone the sort of extensive pre-production work that would go ahead of a November start-date. So, yeah, I wouldn't even waste your grains of salt on this one.