Radio On is a 1979 British-German road movie written and directed by Christopher Petit. It tells the story of Robert, a London-based DJ who embarks on a journey to Bristol to investigate the mysterious death of his brother. The film stars David Beames as Robert, Lisa Kreuzer as Ingrid, and Sandy Ratcliff as a hitchhiker. The film opens with Robert receiving the news of his brother's untimely death.