Watching Avengers or watching Phase One: which is the necessary action
I have a question: I have not seen any of the Marvel U movies with the exception of Iron Man...
"DUCKS HEAD FROM FAN OUTRAGE"
Anyway, something I think I realized after looking things up about the Avengers film is that it seems that I don't have to see the other Marvel films before seeing that film. Because of the story's exposition; the backstories referneced or told slightly about each character is enough to treat the Avengers as a stand alone film as well as a film as part of a larger picture (and almost like the Ultimates, which I like).
So, is this true and can I watch Avengers instead? If yes, or if not, please explain.