9/10. The best superheromovie based on a Marvel character and almost as good as Superman: The Movie. In the top five with Superman TM, Spider-Man, Batman and Batman Begins.
Only thing I missed was a great music-score and for a genius Stark was a bit too naive. Except for that it was perfect for a fan and quite good for everyone else.
Oh, and yes the scene after the credits was genius, a great treat for all Marvelgeeks.