One Bad Apple

Bette Davis and Olivia de Havilland in In This Our Life (Warner Bros., 1942)

Jo Ann Marlowe and Ann Blyth in Mildred Pierce (Warner Bros., 1945)

Kim Hunter and Vivien Leigh in A Streetcar Named Desire (Warner Bros., 1951)

Faith Domergue and Linda Darnell in This Is My Love (RKO, 1954)

Rhonda Fleming and Arlene Dahl in Slightly Scarlet (RKO, 1956)

Mamie Van Doren and Elinor Donahue in Girls Town (MGM, 1959)

Sisters. It's Complicated.

Olivia and Joan

They never did see eye to eye.

Thinking of You

Sibling Rivalry

In this corner... the charming McGuire Sisters.

And in this corner, the vivacious DeCastro Sisters!

As much as we love those "Sugartime" sweeties, we have to admit that, in this rumble, the DeCastro girls would not only take the McGuires, but probably bring back Phyllis' head as a battle trophy. You just know there were a few switchblades in those 'do's.

This Used to Be My Playground