An unexpected Marvel crossover is happening, though it’s not the kind everyone’s been hoping for. It has been confirmed that a clip from X-Men: Days of Future Past will be play after the credits roll on The Amazing Spider-Man 2. This is not only weird because previews of upcoming movies usually come before the film and not after, but because X-Men and Spider-Man are owned by separate studios. Yes, they’re both Marvel comics properties, but Fox retains the rights to all X-Men characters while Sony is in control of all things Spidey. This has been the principal hurdle preventing possible crossovers between the Spider-Man/X-Men/Avengers universes, since the practicality of any “team-up” film would necessitate a split of profits between major studios.
Hit the jump for more on this odd move, and what it could mean for the future. [Update: A full explanation regarding why Sony agreed to promote Fox's Days of Future Past for free has surfaced. Details after the jump.]