Avengers: Doomsday will be the ultimate crossover event for longtime Marvel fans, bringing back the original X-Men crew as well as other fan-favorites from a bygone era of the superhero genre. In addition to casting a bevy of X-Men actors, Doomsday will be getting some veteran superhero talent behind the camera. Fortunately, it seems that the next Avengers sequel will look like an X-Men film in more ways than one.