In my opinion, Dark Knight is the finest superhero movie ever made. There’s something about the way it builds its own Batman mythos, borrowing minimally from the comics but adding its own twists to make a great movie that you’d love even if you perhaps weren’t a superhero fan.
Avengers on the other hand is a movie for fanboys. And ordinarily that would be a worry. You’d picture this big, soulless movie, with fanboy moments crammed in, trying to tick boxes instead of telling a story. And when you consider that this movie features the leads from three previous Marvel movies… well, you’d be forgiven for thinking that this thing had ‘mess’ written all over it before the ink was dry on the script.