I just saw Iron Man...
'Twas apt casting to have Robert Downey Jr. portray the flawed and complex Tony Stark. Mr. Downey has some personal experience with character flaws.
This one role could re-make his movie career.
I must say; kudos and props to the producers of this film. It's a sci-fi premise, and they knew if they were going to "hook" the tech-savvy sci-fi geeks out there, they would have to get the details right.
Comic books don't have to go into details, that's what imagination is for. Comic books just have to look pretty.
Movies must have details, they must have nuances...otherwise, the audience will be un-willing to suspend disbelief long enough to be drawn into the story.
I was delighted to see that such details as articulated control surfaces were included in the flight sequences of the film. After all, it's all well and good for the comic book to go "whoooosh!", etc. But in a movie you gotta ask; "ok, it's gonna fly -- how is it gonna fly?" They went with the man-in-a-missile approach and had the suit fly ballistically...but how's it gonna maneuver? Control surfaces, of course. Glee!
I was actually drawn into the interactions between the principle characters to a degree that I'm already anticipating what's next for Tony, Pepper Potts, Rhodey, and Christine. Ought to be interesting.