Ask any martial arts movie fan for his or her list of all-time action favorites, and there's a good chance that Killer Clans ranks somewhere near the top. Based on a popular swordplay novel, Killer Clans (whose Chinese title literally translates into the poetic "Meteor, Butterfly, Sword") has enough conspiracies, stratagems, and sword fights to make even non-action fans happy. They are masterfully staged by Yuen Cheung-yan, brother of Matrix martial arts choreographer Yuen Woo-ping. The cast includes some of Shaw Brothers' leading swordsmen and swordswomen, who bring the novel's epic battles between underground clans to life. In these battles, the line between good and evil is not always so clear.