Captain America: Civil War - 9 Theories On How The War Starts
9. An Unregulated Superhero Group Messes Up
In other words, exactly how it happens in the comic books. In that universe, the Superhero Regulation Act is passed because some over-zealous super-youngsters accidentally had a hand in killing hundreds of citizens, including - crucially - about 60 kids, on live TV. Not the easiest thing to recover from. How It Would Work Well, it would depend on the introduction - however briefly - of an entirely new superhero team (possibly a gang of misfit copycats attempting to make a name for themselves on Youtube or something terribly modern), who could accidentally lead to lots of deaths in an already suspicious climate. The Evidence None, other than the source. But then perhaps it's too much to expect that Marvel are actually paying any attention to the comics, other than borrowing the name and a spiritual framework for the plot, since VERY little of it seems even remotely possible. The Likelihood Slim to none. Logistically, it would be silly to add another element into a stand-alone movie that has to stay south of the three hour mark, and the way the MCU has been shaping up, to ignore all of those narrative elements for a trigger pulled entirely out of nowhere would basically be a punch to the audience's gut.