Un plus une is a 2015 French romantic comedy film directed by Claude Lelouch and starring Jean Dujardin, Elsa Zylberstein, Christopher Lambert, and Alice Pol. It was shown in the Special Presentations section of the 2015 Toronto International Film Festival.

Claude Barruck Joseph Lelouch is a French film director, writer, cinematographer, actor and producer. Lelouch grew up in an Algerian Jewish family. He emerged as a prominent director in the 1960s. Lelouch gained critical acclaim for his 1966 romantic melodrama film A Man and A Woman. At the 39th Academy Awards in 1967, A Man and a Woman won Best Original Screenplay and Best Foreign Language Film. Lelouch was also nominated for Best Director. While his films have gained him international recognition since the 1960s, Lelouch's methods and style of film are known for attracting criticism.