Minotaur (2006)

During the Iron Age, a small village worships a bull as their god, with the village queen going so far as to mate with the beast. Her half-human, half-bull child -- named the Minotaur -- is imprisoned in an underground labyrinth, and every three years the village is forced to sacrifice eight people to him as penance. Theo (Tom Hardy) is devastated when his girlfriend is chosen. But, when he learns she may be alive inside the labyrinth, he asks the king (Tony Todd) for a chance to save her.