Between Us Girls (1942)

Carrie, ambitious young actress and her manager Mike Kilinsky, travel east from Chicago to Long Island so Carrie can see the new mansion that her mother Chris has just purchased. Chris is not there when Carrie arrives by Gallagher, the family major domo, tells Carrie that Chris is in love with the very rich Steve. Chris confesses to Carrie that she has lied about her age to Steve, claiming to be 31, and that the photograph of Carrie is Carrie's (non-existent) Aunt Sadie and Carrie is only twelve. Carrie insists that her mother keep up the masquerade, and she will pose as a 12-year-old. Steve arrives and brings with him his friend Jimmy Blake. More than a little confusion follows including Carrie starting a fight with another "kid" to keep Jimmy from keeping a date with his fiancée and Mike escorting Chris and the "under-age" Carrie to a night club, and other incidents that only tend to prove that Steve and Jimmy aren't the brightest bulbs shining. Diana Barrymore is better as the 12-year-old than she is later playing Joan of Arc in a Detroit theatre, where the light finally dawns on the perplexed Robert Cummings character.