It's one of the most popular comic book arcs in recent history and should translate to one hell of a film: Captain America (Chris Evans) takes on Iron Man (Robert Downey Jr) as The Avengers come to blows over whether superheroes should have to join a register or not. It's going to differ significantly from the source material, but from what's been shown off so far, it looks like a total blast: Black Panther joins the fray, there's a government agent role for Martin Freeman, and we get to see a fleet of iconic superheroes beating the living crap out of each other. That's without even mentioning the appearance of new Spider-Man Tom Holland in some form, and the possibility that the film may feature one of the most game-changing scenes in the MCU to date. Directors the Russo Brothers have already admitted the film is basically The Avengers 2.5, so what's not to like?