The world recently found out about the lineups in the upcoming "Captain America: Civil War." Yet there was still a major mystery surrounding the film: Why were these superheroes and former teammates doing battle with one another?

Many believed this Civil War would follow previous iterations of the story in which Captain America and company fight against superhero registration and maintaining their hidden identities. On the other side of the spectrum was Iron Man trying to push through a registration act and reveal the hidden identities of the heroes.

However, a recent report indicates that the new film will not follow this narrative.

According to Birth.Movies.Death, "There is no Registration Act. There are Accords, a global move to govern the [superheroes]. ... The divide between Captain America and Iron Man boils down to that famous Latin quote that gave us one of the best comic book stories ever: Quis custodiet ipsos custodes? Who watches the watchmen?"

This premise has been hinted at before in previous films where Iron Man and the Captain seem to do some battle over who should be the leader of the group and how decisions are made. In "Age of Ultron," Iron Man decided to create artificial intelligence without telling anyone about it. When the plan reverted against him, he was forced to accept his guilt in the situation and seemingly lost the trust of some of his fellow companions.

Stark is one of the richest men in the Marvel Universe and his impulsive and tinkering nature has made him a threat to all in one way or another. Yet he might feel threatened by the strengthened leadership of Captain America as he embarks on creating new Avengers at the end of "Age of Ultron." Stark might find the need to police Captain America, something that does not sit well with Steven Rogers.

It will be interesting to see how far Marvel departs from the previous versions of the story. "Captain America: Civil War" hits theaters in May 2016.