If you (as I) thought the one thing that 300 really sorely missed was Lena Headey doing CGI sword fights then you are in for a treat here. It's the first review I've done in a while so it runs into 2 parts - How many of you will watch both bits? :)

IMDB Plot Summary -

After its victory over Leonidas' 300, the Persian Army under the command of Xerxes marches towards the major Greek city-states. The Democratic city of Athens, first on the path of Xerxes' army, bases its strength on its fleet, led by admiral Themistocles. Themistocles is forced to an unwilling alliance with the traditional rival of Athens, oligarchic Sparta whose might lies with its superior infantry troops. But Xerxes still reigns supreme in numbers over sea and land.