The much talked about Civil War plotline is officially confirmed by Marvel Studios.

At an event in Los Angeles, Marvel announced that the third Captain America movie will be titled Captain America: Civil War and is set for release on May 6, 2016.

The plot will reportedly centre on Marvel Comics' Civil War storyline, which saw heroes at odds both philosophically and later physically, over a proposed Superhero Registration Act.

The two sides in the comics were led by Captain America and Iron Man, and Robert Downey, Jr will play Tony Stark, the film's primary antagonist.

It's been widely rumoured that the Avengers line-up will be significantly shaken up by the events of Avengers: Age of Ultron.

In the clip, the superheros are seen to be reeling from a pretty bad defeat at the hands of Ultron and his forces, Steve Rogers and Tony Stark are fighting on some topic, apparently setting up the pair for the kind of disagreements that will lead to Civil War in 2016, reported

In the clip, the pair are chopping wood at a house in a rural setting. Tony enters, asking Steve whether Thor said where he was going "for answers."

"Sometimes, my teammates don't tell me things," Steve replies. He said he had hoped Thor would be the exception.

Tony says to give Thor time, that they don't know "what the Maximoff kid showed him."

After Steve provokes Tony a bit more, Stark says that "Banner left to do some research," which Steve says would affect the team. Stark counters it would end the team -- that the mission is to "fight, so we can end the fight, so we can go home." Steve, frustrated, tears a piece of wood in two and says that "Everytime someone tries to win a war before it starts, innocent people die."

Captain America Iron Man Civil War
Captain America and Iron Man clash in Marvel's Civil War comic. Marvel

President Kevin Feige answered a few questions surrounding Captain America: Civil War and talks more on the Cinematic Universe's Registration Act.

According to SlashFilm, Feige said that the cinematic superheroes would oppose government oversight.

"It's not about the secret identity thing, as much as it is about, overall, who reports to who, and who can agree to oversight committee," Feige said.

"Because as of now, in Avengers 2, there is no more security council, there is no SHIELD, obviously. Stark is paying for it, Rogers is running it, and things occur that will make governments begin to question."

According to Feige, the Superhuman Registration Act will stem from the government's desire to keep the Avengers and their superpowered allies in check. The forces opposing the oversight, led by Captain America, will obviously have a problem with that.

Which side are you on - Steve Rogers' or Tony Stark's?

Let us know your opinion in the comment section.