Her musical career led to film roles, beginning with a prominent role as The Acid Queen in the 1975 film Tommy, and an appearance in Sgt. Pepper's Lonely Hearts Club Band. She starred opposite Mel Gibson as Aunty Entity in Mad Max Beyond Thunderdome for which she received the NAACP Image Award for Outstanding Actress in a Motion Picture, and her version of the film's theme, ""We Don't Need Another Hero"", was a hit single. She appeared in the 1993 film Last Action Hero.