Crouching Tiger, Hidden Dragon is a 2000 martial arts film. A Chinese co-production, the film was directed by Ang Lee and featured an international cast of Han Chinese actors, including Chow Yun-fat, Michelle Yeoh, Zhang Ziyi and Chang Chen. The film was based on the fourth novel in a pentalogy, known in China as the Crane Iron Pentalogy, by Wuxia novelist Wang Dulu. The martial arts and action sequences were choreographed by Yuen Wo Ping. A sequel is scheduled for release in 2016.