Underworld: Rise of the Lycans (2009)

During the Middle Ages, the Lycans are slaves to the aristocratic vampires. Lucian (Michael Sheen), one of the Lycans, sets the werewolves up to fight against Viktor (Bill Nighy), the king of the vampires. In his fight for their freedom, Lucian is joined by his secret lover Sonja (Rhona Mitra). Her presence causes some changes in Lucian's plans.