Marvel superhero fans got positively X-cited when they saw the post-credits scene of Amazing Spider-Man 2. Not because it teased more Andrew Garfield spandex action, but because it teased something else entirely - X-Men: Days Of Future Past!
The sequence showed Jennifer Lawrence as Mystique kicking butt and taking names (and faces) in a scene from the upcoming sequel.
What did this mean?? Would Spider-Man cross over with the X-Men? Were FOX and Sony willing to combine their few Marvel properties to take on Marvel Studios' interlocking cinematic universe?