White Dog is a 1982 American drama film directed by Samuel Fuller using a screenplay written by Fuller and Curtis Hanson loosely based on Romain Gary's 1970 novel of the same title. The film depicts the struggle of a dog trainer named Keys (Paul Winfield), who is black, trying to retrain a stray dog found by a young actress (Kristy McNichol), that is a "white dog"—a dog trained to viciously attack any black person. Fuller uses the film as a platform to deliver an anti-racist message as it examines the question of whether racism is a treatable problem or an incurable condition.