I really loved this movie. I thought all the characters were well written, I think they were all well cast. Robert Downey Jr as Tony Stark fit so well, he was amazing. I think the sleeper was Jeff Bridges, we was just fantastic in this character. Terrance Howard was a slight let down in comparison to other award-winning performances but given the character, he did a good job. I have never been a Gwyneth Paltrow fan, but she was good in this film. If you stayed to the end of the credits, Samuel L. Jackon looks to be an interesting Nick Fury, am willing to bet he will be cast in a Nick Fury/S.H.I.E.L.D. stand alone movie, and positively assured to be in an Iron Man sequel. Fantastic special effects and story line round out this movie. I will see it again.