Disappointing. First, one can't help but ignore the implied political propaganda through-out the film. The Spartans constantly proclaiming that they're fighting for "Freedom" and the Persians are naturally portrayed as an anti-freedom people who are thwarted by their belief in exotic "mysticism"
The dialogue is over-the-top and sometimes unintentionally funny. And some of the creatures are a rip-off from The Lord of the Ring trilogy! Sad!
This film is supposed to have elements of a video game and accuracy is not important BUT still, small details are more obvious than huge inaccuracies. Like the 300 men are shown leaving for battle only with what they're carrying, even though they're leaving under wraps, I kept thinking - aren't they going to need some water? What about food? What about an extra pair of speedos at least?
Another small distraction - it's surprisingly blood-less and messy-less. Hand to hand combats show spattering of blood but then, ooops where did all that blood go? Hundreds of bodies piled high, where are the pools of dried blood? Spartans are killing 10 men a minutes and they hardly get any blood on themselves!
I guess most game boys and action buffs might like the film and the film's homo eroticism will make others happy; I think it was plain silly though....