King Leonidas (Gerard Butler) enlists backup from Faramir and Jimmy McNulty as David Wenham and Dominic West join the cast of 300 — based on Frank Miller’s graphic novel retelling of the Battle of Thermopylae — along with Rodrigo Santoro of Love, Actually and Lena Headey of The Brothers Grimm. 300 Spartans against a million Persians? McNulty had best call up Omar for this one.