I've seen it twice already. The acting and the story are great. What I really loved about it was that they genuinely made an effort to stay true to the comics, instead of trying to add their own b.s. "interpretations" of the characters. The story lines, in particular, were very true to the comics (the Iron Man suit you see in the beginning is how the original suit used to look). Still, one does not have to be a fan (or even know) the comics to totally enjoy this movie. Twice I went with people who knew nothing about Iron Man and both loved it. Can't wait for the sequels.