Official tralier 300: Rise of an Empire” the prequel to 300 pits Themistokles against the massive invading Persian forces led by mortal-turned-god Xerxes, and Artemisia, vengeful commander of the Persian navy. The film will be in theaters March 2014. Trailer Below Based on Frank Miller’s latest graphic novel Xerxes, and told in the breathtaking visual style of the blockbuster “300,” this new chapter of the epic saga takes the action…