One of the biggest concerns to have arisen over the course of the Marvel Cinematic Universe's run, ever since the idea was first hinted at, is whether or not the Civil War comic book arc could ever work on screen. Now that it's been announced - as exciting as it is - those concerns remain. By its very nature, Civil War requires a big cast of characters. Getting the balance right will be very difficult for Marvel Studios; too few characters and the word "war" becomes a misleading part of the title, but too many characters and the movie could come across as crammed. It's being presented as a Captain America movie in the Marvel Cinematic Universe, so how will it be possible for Captain America to truly star in a movie with potentially loads of characters involved? Audiences will have to wait and see.
