What really makes this movie work, even more than the screenplay or the direction, is the cast. Specifically, the casting of Robert Downey Jr. is a thing of brilliance. I remember thinking his casting was a bit of an odd choice for a superhero, but he has proven to be one of the best superhero castings of all time. He perfectly captures the seriously flawed character of Tony Stark, making his conversion all the more believable. Watching Downey work here is something special, he takes everyone to the next level.

None of the other characters get quite the fully rounded treatment that Stark gets, but they all fill their roles admirably. Terrence Howard does a fine job as Jim Rhodes, even though he is another actor I did not really see in the role. I look forward to the potential of him playing War Machine, alluded to within the film as Rhodes looks at an unfinished suit in Stark's workshop. Gwyneth Paltrow steps into the shoes of Stark's assistant, Pepper Potts; she does a fine job. She displays a sly understanding of how to deal with her overbearing boss, as well as some romantic interest. Paltrow and Downey display good chemistry on the screen, growing the tension, yet never becoming corny. Jeff Bridges rounds out the recognizable cast, playing the bald-headed Obadiah Stane. I like what he did here, although I think that he could have used a little more development, although this is a minor quibble.

Bottom line. I have a feeling that time will look down upon Iron Man favorably and it will be remembered as one of the top comic book hero adaptations. It comes out firing on all cylinders, telling a solid origin story as well as being a complete film unto itself. It features a good script, strong performances, and is just a lot of fun to sit through.

One last note, be sure to sit through the credits for a great post-credit cookie.

Highly Recommended.