The greatest Stalingrad film in my opinion is the west German film from the 50s...Stalingrad:Dogs do you want to live forever....its incredible.
There is a German Stalingrad movie from 1993, that is good. A Russian Stalingrad movie came out a few years ago. And Thomas Kretschmann (FEIGELEIN!) was in both the German and Russian "Stalingrad" movies.
Good movie