Crouching Tiger, Hiden Dragon (traditional Chinese: 臥虎藏龍; simplified Chinese: 卧虎藏龙; pinyin: Wòhǔ Cánglóng) is a Chinese-language film in the wuxia (chivalric and martial arts) style, released in 2000. A China-Hong Kong-Taiwan-United States co-production, the film was directed by Ang Lee and featured an international cast of ethnic Chinese actors, including Chow Yun-Fat, Michelle Yeoh, Zhang Ziyi and Chang Chen. The movie was based on the fourth novel in a pentalogy, known in China as the Crane-Iron Pentalogy, by Wang Dulu. The martial arts and action sequences were choreographed by Yuen Wo Ping well known for his work in The Matrix and other films.