DirtyEddie said:
kanal by wadja (1957) is pretty bleak, it follows the polish resistance in warsaw and their annihilation by the nazis. the last part of the film is them attempting to escape through the shit filled sewers. not a film to watch if you need cheering up.
some very good shouts you have given there, this being the best of the lot IMO. the whole trilogy is outstanding (and depressing).
"a generation" is the first in the trilogy, and
"ashes and diamonds" the last.
as holocaust films go, some good shouts on the thread with the best being "the Pianist". the film feels more 'real' than most holocaust films. Polanski himself was a holocaust survivor, maybe that had something to do with it. Wajda also did an interesting holocaust film,
Korczak. about a doctor in the warsaw trying to save children. definitely not the trite robin williams crapjob, the Wajda film is harrowing and depressing.
a lot of good films mentioned on this thread and a few terrible ones.
stuff like "Guns of Navarone" i'd consider more to be action movies than war movies, they're pretty far from any known reality but films like that can be fun to watch.
a couple old war films that are worth watching:
Open City (Roma, Citta apuerta). Italian film about the Italian resistance made while the Germans were pulling out of Rome. one of the few fiction war films shot in the middle of an actual war. brilliant film, all-star team (Roberto Rosselini Directing, Federico Fellini co-scripting, Anna Magnani starring).
Closely Watched Trains not really a combat film but more of a film set during the war, involving the Czech resistance more as a backdrop than as the subject matter.