The teaser gave me the feeling that Superman Returns was about to be the greatest movie ever made, but it turned out being a great movie that didn't quite give Superman the rich majesty that the teaser generated.
I think that Superman is going to someday need a story that really does view him as the unstoppable savior of DC's earth, instead of always having this Lois Lane/Clark Kent stuff going on, and writers holding back on spectacular scenes of power.
In the teaser, every shot was beautiful, and the Brando voice-over was biblical and powerful.
The movie didn't quite seem to reach that. Superman often seemed weak. While Superman is indeed the nicest man alive, and the perfect role model, we see that his absense has left his world falling apart in ways he can't/won't fix, even by the end of the movie. Lois is still with Richard, and Jason is still a... lacking child. It had a very wierd way of making Superman seem weak, despite the amazing action scenes, he just seemed weak in this movie.
Still a great movie, I'm hoping to see it again tomorrow.