Puberty Blues is a 1981 Australian coming of age film directed by Bruce Beresford. The film is based on the 1979 novel Puberty Blues, by Gabrielle Carey and Kathy Lette, which is a protofeminist teen novel about two 13-year-old girls from the lower middle class Sutherland Shire in Sydney. The girls attempt to create a popular social status by ingratiating themselves with the "Greenhill gang" of surfers, who have an unrestrained attitude toward casual sex, drugs and alcohol over the course of one Sydney summer.