Underworld (2003)

A war has been raging between the Vampires and Lycan for centuries, Selene (Beckinsale) is a death dealer, assigned to hunt down and eradicate the last of the Lycan. When she comes across Michael Corvin(Speedman)who holds the key to end the war she must decide where her alligances will lie.

Vampires and Werewolves have been sworn enemies for hundreds of years. Now fought in a Gothic-like setting, the conflict takes an unexpected and deadly new turn. Selene, a beautiful vampire warrior, uncovers a Lycan plot that could prove fatal for her entire race. She shadows a human, Michael, the Lycan's supposed target. Although she finds herself becoming attracted to him, he becomes infected with the lupine disease during a violent struggle with the Lycan overlord, Lucian, long thought to be dead. Now both sides must decide how to end the conflict and save their species as new and terrifying secrets unearth themselves and threaten their entire existance.