Well, one thing must be said: The Trailer fully served the producers goal: Drag as many as possible people into the theater.

Like a lot of people already said: Iron Man 3 is fully packed with CGI, VFX, XYZ but has everything else than a compelling story or such. I don't want to spoil anything but come on, this is all you can do with a fantastic cast?

By the way: Robert Downey Jr. needs to go over the books when it comes down to choosing the next movie roles because while making a fortune with these popcorn movies he dangers himself by losing role credibility. Why? In my opinion these kind of movies don't require acting skills very much this is Downey Jr.'s 4th appearance in the Iron Man series (Avengers included) so I tend to think he's choosing roles or movies that make him tons of money but don't challenge him as an actor.

Anyway, I think you really have to be an Iron Man fan in order to spend your money on this. I went to see this because of the horrible weather on a Sunday afternoon. And this is, what the movie does best: it distracts you from something annoying.