I was a Big Fan of The Avengers
The biggest complaints I heard during the movie were:
A) Why is Hawk Eye even here?
B) Black Widow has no super powers.
I have not heard back from Hawk Eye yet.
But Scarlett Johansson Makes a Good Point
The trailer tease for Ferris Bueller 2, the movie sequel that took 25 years to make.
IMDB shows nothing on it as of 01/25/2012, suspicion is that they are waiting on the Super Bowl Announcement but after 25 years it appears there is a Ferris Bueller Sequel the works.