There is going to be some changes made on how we categorise marvel topics. Since we have a tidier and organized system with categorizing Star Wars, I think we should carry out the same treatment with Marvel. For a while I've noticed that many users, including you, have been inserting pretty much all related categories to certain articles. It's become a bit of a mess.
Example, remove categories relating specifically to the Avengers, Spider-Man and Iron Man movies and only keep Marvel Cinematic Universe. This will require some help, and that's where you and other users come in.
I need all the Marvel categories gathered so I can figure out a plan on how we're going to do this. Make a list of all the categories you know and send them to me. If you come across any you miss send those too.