Marvel and DC: Worlds Collide

Marvel and DC: Worlds Collide are a series of straight to DVD films that primarily focuses on crossovers of Marvel and DC's Avengers and Justice League.

Premise
The movies tells a unique take on usual crossovers. The creators of the series explained that these are essentially 'What If's?".

"We've seen Avengers. They have Iron Man, the Hulk and Spider Man. For Justice League, It's Batman, Super Man and The Flash. But what would happen if the roster's change. What if we have Super Man and Iron Man living at the same universe or Bat Man with Spider Man and the whole thing goes on. What if Batman founded the Avengers or Iron Man founded the Justice League. That's what we're taking this series to."

Creators has also confirmed that the films takes place in two different universes where elements of both comic franchises are combined.