Useless (simplifie Chinese: 无用; traditional Chinese: 無用; pinyin: wú yòng) is a 2007 documentary film directed by Jia Zhangke. It is Jia's second full-length documentary film after 2006's Dong. The film follows China's fashion and clothing industry. The film was produced by Jia Zhangke's own Xstream Pictures, in association with the China Film Association and the Mixmind Art and Design Company.