Quote Originally Posted by Redleg
I didn't say I found it believable...
No war movie is realistic - the closest that I have ever seen to being realistic is The Cross of Iron and that is because it shows the individual intensity of some soldiers.
Heh, if you'll note, that was my choice for best WWII movie in that thread.

However in 1941 much of the Red Army was a bunch of leaderless sheep because Stalin "purged" the Army in the 1930's.
Granted, the higher officers suffered from the purge, but even given that, the troops filtering into Stalingrad would have had NCOs leading them; there do not appear to be any in the movie, beyond the odd traffic cop herding the hordes in the direction of the front. That, I think, is unrealistic.