The Marvel films are rife with incredible action scenes, and everybody gets in on the fun. (Even the littlest of them all, Ant-Man!) Of course, for these films, the majority of the fighting sequences are loaded with CGI — we can't actually have an alien invasion destroy half of New York City. Also, aliens aren't real.
But take out the CGI from the equation and you've still got, well, something entertaining — just not in the way Marvel would want. Unsurprisingly, there's a lot of animation and trickery involved, but the actors playing our superheroes look awkward nonetheless. In particular, Benedict Cumberbatch as Doctor Strange for the upcoming film looks like he's never jumped before in his life.
See for yourself:
CGI-heavy or not, the critical and financial results for the Marvel films have been overwhelmingly positive, and the action sequences certainly play a role in that. Still, it's important to remember the people behind the costumes and masks are just like us: awkward and powerless.