I went to go see this with a friend on Saturday night. Now, I heard the film from others that this a step or two below the original, but I went in with an open mind. By the time the movie was over, I was pleased. But then, after thinking about it more, this is a disappointment. The film is drastically different in pace. Honestly, it gets a bit of a bore for awhile, which never happened in the original. Sometimes, its just hard to take this film seriously as a superhero film. In my opinion, the overwhelming number of laughs and silliness in this film makes it hard to take seriously. There is a large list of new things in this sequel. First, we learn much more about Tony Stark's father than we ever did in the original. Its quite interesting. Jon Favreau has a much, much bigger role in this film than the original, and I absolutely loved his role in the film. We learn his character has a personality. The talented Don Cheadle replaces Terrence Howard as Rhodey,and I actually liked him better in the role. They both seem so different in the role. There's Scarlette Johansson as Black Widow. I was honestly disappointed with her role in the film. It was too small, I thought. Mickey Rourke is raw and sinister as Whiplash, the main villain, and its a perfect fit. He does an absolutely perfect Russian accent. Sam Rockwell as Justin Hammer is a good fit for the most part, although it was hard for me to take his character seriously after awhile as a villain. Sometimes, it seems like all his character does is be funny. Samuel L. Jackson has a much bigger role in this film as Nick Fury (he had a credit ending scene in the original). In a way it succeeds over the original, but for the most part it doesn't. It's missing some of the excitement and originality that made the original a truly great achievement in film. This is quite a bit different from the first, and you may not like how different it is. I certainly didn't. Many new actors, and a whole different type of ballgame. There's a bit, I think, too much silliness in this film. But still, it'll do. Go see this. Its not as fun as the first, but its not as disappointing as Spider Man 3 was. And do be sure to stay after the credits if you're a fan of Marvel Comics. Make sure you notice Stan Lee's cameo in this as well. Its rather brilliant. Overall, good film.