Let's Make Love (1960) With Marilyn Monroe , Yves Montand, Tony Randall. This movie is a comedy musical film made by 20th Century Fox. It was directed by George Cukor and produced by Jerry Wald from a screenplay by Norman Krasna, Hal Kanter and Arthur Miller. The plot revolves around billionaire Jean-Marc Clement (Montand) who learns that he is to be satirized in an off-Broadway revue. After going to the theatre, he sees Amanda ( Monroe ) rehearsing the Cole Porter song "My Heart Belongs to Daddy", and by accident the director thinks him an actor suitable to play himself in the revue. Clement takes the part in order to see more of Amanda and plays along with the mistaken identity. Frankie Vaughan appears as a singer in the revue, while Milton Berle, Gene Kelly, and Bing Crosby appear in cameo roles as themselves trying to teach Clement how to deliver jokes, dance, and sing, respectively. Tony Randall's supporting role portrays Clement's conflicted flunky.