Rock-A-Bye Baby is a 1958 American musical comedy film starring Jerry Lewis. A loose remake of Preston Sturges' film The Miracle of Morgan's Creek (1944), the film was directed and written by Frank Tashlin, and features Marilyn Maxwell, Connie Stevens and Reginald Gardiner.
Clayton Poole (Jerry Lewis) is a small-town TV repairman whose former sweetheart, Carla Naples (Marilyn Maxwell), is now a famous movie star. Carla has cultivated a reputation as a virgin who does not have affairs or carouse with men in typical Hollywood fashion. On a romantic fling, she secretly marries Carlos, a famous Mexican bullfighter; the next morning the couple agree it was unwise and plan to have it annulled, but her husband dies that day in a bull-fight. Distraught, Carla tore up her marriage license, not realizing she was pregnant; there's no legal documentation to legitimize the child. Her agent, Harold Herman (Reginald Gardiner) tries to avoid a scandal by sending Carla into the country to give birth. He suggests that they send the baby back to the town where she grew up, Midvale, Indiana. The cover story will be that she is going into seclusion to prepare for her next role, the lead in a controversial religious epic The White Virgin of the Nile. After, she can adopt her baby. Carla says that her sister is too young and her father hasn't forgiven her for becoming a movie star, so Carla decides on Clayton to take care of her baby.