"All women are rivals, fundamentally" (so which one's Joan Fontaine?)

THE DARK MIRROR

1946

Directed by Robert Siodmak

Written by Nunnally Johnson and Vladimir Pozner

Spoiler alert: moderate

And some, you'd assume, were good people

HOLD BACK THE DAWN

1941

Directed by Mitchell Leisen

Written by Charles Brackett, Billy Wilder, Richard Maibaum, and Manuel Reachi (based on the novel by Ketti Frings)

Spoiler alert: moderate