Herbert Biberman (1900-1971) is the writer and director of this 1944 film. Biberman was a member of the left wing theatre group in New York City and was married to Gale Sondergaard. Both Biberman and Sondergaard were victims of the HUAC "red scare" – Biberman served time in prison and both were blacklisted.
This was his third film as director, fifth as a writer.
Lloyd Bridges (1913-1998) has a minor role in the film. Bridges too was briefly blacklisted but turned around and would be a staunch right wing presence.
(Doc) Robert Golden produced the film. He also produced "Hitler's Children" (1943) which was directed by Edward Dmytryk, another director imprisoned during the HUAC trials. "Hitler's Children" was the most successful film for RKO, even surpassing King Kong, and led to this film being made.
From the film there aren't many obvious communist themes, but there is a sympathetic Russian soldier and there is a lot of emphasis on people working together. The film is ardently anti-Nazi.
George Coulouris (1903-1989) gives the best performance of his career. Osa Massen (1914-2006) is excellent.