Warner Bros has released a new trailer for 300: Rise Of An Empire. The Legendary Pictures follow-up to the 2006 pic focuses action on the sea as Greek general Themistokles (Sullivan Stapleton) tries to unite all of Greece by leading the charge that will change the course of the war. Themistokles is forced to face off against the massive invading Persian forces led by mortal-turned-god Xerxes (Rodrigo Santoro), and Artemisia (Eva Green). Lena Headey, Hans Matheson, David Wenham, Jack O’Connell, Andrew Tiernan, Igal Naor and Andrew Pleavin also star. 300: Rise Of An Empire hits theaters on March 7.