I have the comic book, it was a very faithful adaptation. Almost frame by frame. Most the lines that are in the comic are in the movie. Yeah there were some things added to it because if they went just on the comic then there wouldn't be enough for the movie. Really the main things that were in the movie that weren't in the comic was that crazy Ogre thing, the Rhino, Leonidas having a son, and Leonidas's wife having a bigger part. Many of the lines that were added in the movie seemed to be more so based off the situations & themes of the comic. Even with those additions, it stays true to the comic in many ways.
Yeah I have watched the movie. Twice, and I intend on a third. The only thing is that the bulk of every example that I've heard that is said to be implied pro-Iraq war was something that was already in the comic. So what if you weren't the only one that supposedly noticed pro-Iraq war implications? In the discussions of the movie with the people I went to see it with, I wasn't the only one bashing the people who think there is political meaning in the movie. Really I can see how one would mistake it as pro-Iraq war, but the more the movie goes on the more it seems to be applied to the situation of Persia coming to swallow tiny Greece. By the end of the movie it doesn't parallel anything to our times.
I must say that the War of the World's remake didn't really follow the original story very much... it barley did. But it's certainly not the way 300 was done.
Anyways, what I meant was that it followed the comic rather well, there wouldn't be much room to put political agendas into it. My reasoning does not suggest that simply because what it was based on was before the Iraq situation that there couldn't be any inject politics(though I admit that in my original comment that that wouldn't be so clear). I also must add that the director insisted there were no political implications of the movie, not that you'll buy that. Still I've heard plenty of things about this movie suggesting political implications. I've heard it said that Leonidas is George Bush or that Xerxes is George Bush. Really I think both interpretations are just something that people want to believe.