The Cross of Lorraine
Starring Jean-Pierre Aumont, Gene Kelly, Cedric Hardwicke, Peter Lorre, Hume Cronyn, Richard Whorf, Joseph Calleia, Wallace Ford, Richard Ryen, Jack Lambert
It's a drama and war movie, and has a rating of 6.6 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.