Krull

On the planet of Krull, an evil creature called the Beast decimates the world's army and kidnaps the lovely Princess Lyssa, who is destined to become queen. Her brave beau, Prince Colwyn, leads a motley band of warriors, including Ergo and Kegan, to rescue his beloved. However, before he can face the Beast, Colwyn must locate a mystical weapon known as the Glaive, which he can use to slay the hideous villain.