Having all these super heroes that usually command their own movie in one film and making it work is a great feat. The first hour sort of sets up the action for the last part of the movie. Maybe there could be more action in the beginning or maybe its just not possible because of all the elements that have to be put together. Either way its a great movie and the action sequence in the end is fantastic, sort of reminds me of the 1st and 3rd Transformer movies where the battles took place in the city. If you're a Super Hero fan you will love this movie.
What's great about it: All the super heroes in one movie
What's not so great: Maybe a little more action in the 1st half of the movie