What a movie. If you like Frank Miller, and you liked his 300, then see it. If you liked Sin City, see it.
Script wise, not the best, and a Greek king with a Scottish accent <_< some actors just can't loose their native accents. But visually :clp This is great. If you can read the comic first.
Oh and don't go expecting historical accuracies, then you will be sorely disappointed. This is a movie based off a comic book, that was inspired by the 1962 movie 'The 300 Spartans' (Another great movie if you like the older ones). This is a Frank Millers movie. Go in with no expectations except a lot of violence.