La Garçonne.

La Garçonne is a 1957 French film directed by Jacqueline Audry. It follows Monique, an ingenue and a clueless girl who believes in true love. When she discovers her future husband has a lover, she rebels against her bourgeois life:s he will lead a free and wild life and she will live like a man. Soon she becomes the toast of Gay Paris, sleeping with all the men around, and even with a woman.