Iron and Silk is a 1990 movie based on the eponymous book by American writer Mark Salzman. It details his journey to China after college to study Chinese wu shu, better known in the west as kung fu, and to teach English. Though not trained as an actor, Salzman starred as himself, as did Pan Qingfu, who claimed no one else could portray him on film. Salzman's experiences occurred in Changsha, Hunan, though the film was shot in Hangzhou, Zhejiang. (Wikipedia)

A maverick American cop and his Chinese counterpart join forces to bring a drug dealer and his hired thugs to justice.