Fans of the Marvel Universe want to see their favorite iconic Marvel characters interact, crossover and be free within the Marvel Cinematic Universe. With Fox having the rights to X-Men, it greatly limits the creativity and story lines that all Marvel fans are dying to see come to fruition. The same thing can be said for Spider-Man, as the movie rights are owned by Sony. All fans would like to see all their favorite Marvel Superheroes interacting on the same level and in the same universe.