The Cranes are Flying / Летят журавли (1957)
I just have to add "The Cranes are Flying" (Летят журавли) to this thread.
I will not say anything about the complex story, but to summarise:
This is a war movie for women, and a very, very good one.
I never would have thought that I'd love a black/white 1950s Soviet war movie... but I did!
As you can see from the cover below, it is a Palm d'Or winner.
Incidentally everyone speaks very clearly and the subtitles are good.
One more comment: Someone below... say, 20.. is unlikely to appreciate this; it requires a bit of life experience....
Very touching and very well filmed. I think it's a masterpiece.