Watch on the Rhine (1943)

Director: Herman Shumlin
Cast: Bette Davis, Beulah Bondi, Donald Woods, George Coulouris, Geraldine Fitzgerald, Henry Daniell, Lucile Watson, Paul Lukas

Synopsis:

On the eve of World War II, the German Kurt Müller, his American-born wife Sara, and their three children, having lived in Europe for years, visit Sara’s wealthy mother near Washington, DC. Kurt secretly works for the anti-Nazi resistance. A visiting Romanian count, becoming aware of this, seeks to blackmail him.