Has Mark Hamill just revealed his big Star Wars secret? SPOILERS

When it comes to Star Wars: The Force Awakens we think JJ Abrams and co have done a pretty good job of keeping any major spoilers or plot points off the internet (no mean feat in this day and age!), but it could all be for nothing thanks to one little tweet. Less than week after Mark Hamill revealed to us that he was keeping a HUGE secret about Star Wars 7 , the actor may have ruined it all... Warning