Semper's Stupendous to Infinity and Beyond Everything Marvel Movie/TV Thread

Is Ant Man's disappointment box office more due the movie itself (it's not very good) or more because of general Marvel fatigue, or just waiting until Disney+?

Yes.

The Marvel fatigue is because the movies aren't as good / grounded. They are overall less relatable and more confusing for a lot of people. So, if the movie isn't great and the story is more confusing, just wait until it hits streaming to keep up in case the next one is good.