Mickelle and I went and saw 300 when we were up in Georgia. I know that it deviated from the original story (Norman could tell us all about that), but I still enjoyed the movie. It was visually appealing. I am a Frank Miller fan.
I did some research online and I can't find any proof to support something I noticed in the film. Evidently, Sparta was a very scientifically advanced society. It appears that they had advanced knowledge of immunology because almost every one of the 300 Spartans was vaccinated against smallpox.