Originally Posted by S-2

Days of Glory (1944) Gregory Peck

Guerrillas fight the Germans. Really interesting and heroic portrayal of the Soviet Union.

Attack and Retreat (1965) Peter Falk, Arthur Kennedy

Italians and Russians collaborate against the Germans. Incredible footage w/ cast of thousands, it seemed. Italian film made in the Ukraine under Soviet guidance. Really different perspective from the Italian POV.

I endorse BIGFELLA's comments about the German language "Stalingrad". Very good until some starving Germans uncover a warehouse of riches, as I recall. Hard to believe on that point but otherwise seemed to brutally convey the sense of hopelessness within the kessel.

All three would be tough to impossible to find.