300 star Lena Headey returns as Queen Gorgo in the second trailer for 300: Rise of an Empire. Following Leonidas' (Gerard Butler) defeat in the 2007 blockbuster, General Themistokles (Sullivan Stapleton) tries to unite all of Greece in war against the mighty Xerxes (Rodrigo Santoro) and his commander of the Persian Navy, Artemisia (Eva Green). Prepare for this ultimate battle with the latest footage for director Noam Murro's sequel, arriving in theaters March 7, 2014.