Wallflower is a 1948 American comedy film directed by Frederick de Cordova, written by Henry Ephron and Phoebe Ephron adapted from the play of the same name by Reginald Denham and Mary Orr, and starring Robert Hutton, Joyce Reynolds, Janis Paige, Edward Arnold, Barbara Brown and Jerome Cowan.

[2] Joy Linnett and her stepsister Jackie miss a flight home to Ohio, but the attractive Joy, accustomed to getting her way with men, flirts with pilot Stevie Wilson until he agrees to personally fly the two young women.

At home, old beau Warren James comes calling and invites Jackie to a country club's dance.

As soon as Joy emerges in a swimsuit, the smitten Warren not only neglects Jackie, he invites her sister to the dance.

She emulates her sister's behavior and wardrobe, persuading Stevie to accompany her to the dance.