The Rats
Die Ratten (original)
After the fall and before the wall.
Starring Curd Jürgens, Maria Schell, Gustav Knuth, Heidemarie Hatheyer, Ilse Steppat, Franz Rémond Jr., Lou Seitz, Barbara Rost, Erich Dunskus, Carl de Vogt
It's a drama movie, and has a rating of 6.7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Denmark.