Days of Being Wild is a 1990 Hong Kong drama film written and directed by Wong Kar-wai. Starring 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, the film marks the first collaboration between Wong and cinematographer Christopher Doyle, with whom he has since made six more films. It forms the first part of an informal trilogy, together with In the Mood for Love (2000) and 2046 (2004).