It's not exactly unusual for superheroes to team up. Spider-Man and the X-Men have done so on numerous occasions in the comics, so it should come as no surprise that they are doing so again - sort of - on the big screen. But surprise! There is an X-Men: Days Of Future Past clip in the credits of The Amazing Spider-Man 2 , which marks a possible new era of collaboration between competing studios with Fox and Sony working together. Now this isn't a post-credits sting as we've seen before in the Marvel universe, setting up some sort of crossover between the two worlds. Rather, it's a clip from the X-film that gives us a taste of the action we're in for. We've been told by Sony that the clip will be attached to the film in the UK. The scene featured sees Jennifer Lawrence's Mystique, Lucas Till's Havok and Evan Jonigkeit's Toad taking on William Stryker (Josh Helman) and his military men. Without wishing to spoil anything, let's just say