Wow this review aged very poorly. It fine as a relic blog post from the time, but as a film review it fails to deliver.
Also from an interview with the director (emphasis mine):
Interviewer: In the film, a tiny bunch of European freedom fighters hold off a huge army of Iranian slaves. Everyone is sure to be translating this into contemporary politics.
Snyder: Someone asked me, "Is George Bush Leonidas or Xerxes?" I said, "That's an awesome question." The fact they asked tells me that this movie can mean one thing to one person and something totally different to another. I clearly didn't mean either. I was just trying to get Frank's book made into a movie.