All About Eve (1950)

Backstage story revolving around aspiring actress Eve Harrington (Anne Baxter). Tattered and forlorn, Eve shows up in the dressing room of Broadway mega-star Margo Channing (Bette Davis), telling a melancholy life story to Margo and her friends. Margo takes Eve under her wing, and it appears that Eve is a conniver who uses Margo.