The U.S. Government wants Tony Stark's Iron Man armor but in a Senate hearing he very publicly says "No!", that it's his private property. He also insists that no one will be able to duplicate the technology for at least five to ten years. But he's wrong. A Russian man by the name of Ivan Vanko (Mickey Rourke) has developed similar technology--and nearly kills Stark during a car race. Vanko is the evil genius son of a scientist who worked with Stark's father, Harold, forty years before. When Vanko is imprisoned he's broken out of jail by industrialist Justin Hammer (Sam Rockwell), Stark's competitor. Hammer wants Vanko to develop a new version of the Iron Man armor, though Vanko has an agenda of his own.
The Iron Man armor which has kept Tony Stark alive is also killing him, since the element he is using keeps on burning out. He's developing this strange rash, that looks like the design of a circuit board. So he becomes erratic, even naming his assistant Pepper Potts as the CEO of Stark Industries. And he has a falling out with best friend James "Rhodey" Rhodes (Don Cheadle), who ends up taking one of the Iron Man outfits, which is then weaponized by the U.S. Government. It's cool to see "War Machine".
I found this sequel as entertaining as the first movie. And, like the recent HULK movie, begins to set the stage for the upcoming AVENGERS flick. There's even an appearance by Nick Fury (Samuel L. Jackson). My only gripe is the casting of Scarlett Johansson as The Black Widow, which didn't work at all for me. They needed someone like Jennifer Garner or Famke Janssen in the part. This aside, IRON MAN 2 is a great Summer movie.