In the wake of [Captain America: The Winter Soldier](tag:254973) – and the dissolution of SHIELD – the Avengers are basically leaderless. While this is seemingly not a problem at the beginning of Age of Ultron, it’ll definitely become one during the film’s running time.
In my point of view, what would have happened was: SHIELD has fallen apart, so this movie becomes Tony Stark and Steve Rogers trying to put the Avengers together without a parental unit like Nick Fury hovering over them. What you realize is that these are guys who work best with rules, and probably do need some adult supervision.
Both Iron Man and Captain are stubborn, strong-willed individuals, and otherwise very different personality-wise. Needless to say, that sort of combination can lead to some conflict, and it might very well be (part of) the impetus for [Captain America: Civil War](tag:994409).
It’ll be interesting to see what else will come to cause the Civil War besides personality differences. (After all, that’d be a pretty petty war.) Since the Marvel Cinematic Universe doesn’t hinge upon secret identities like the comic books do – and the Civil War of the comic books did – what will be at the heart of the film’s conflict?
At last, whose side are you on?