Days of Being Wild is a 1990 Hong Kong drama film directed by Wong Kar-wai. The film stars some of the best-known actors and actresses in Hong Kong, including Leslie Cheung, Andy Lau, Maggie Cheung, Carina Lau, Jacky Cheung and Tony Leung Chiu-wai. Days of Being Wild also marks the first collaboration between Wong and cinematographer Christopher Doyle, with whom he has since made six more films.
The movie forms the first part of an informal trilogy, together with In the Mood for Love (released in 2000) and 2046 (released in 2004).