It took me awhile to gather some of my favorites, as this genre is not really a favorite of mine. I do have my essentials, however:
M (Peter Lorre)
High Sierra (Bogart and...Lupino, I think)
Murder My Sweet (Dick Powell, still trying to get away from his crooner image)
Lady in the Lake (I think this is one that is shot by the view of the "hero")
Scarlett Street
Third Man (cinematography superior to Citizen Kane, IMO)
Lady From Shanghai
Night of the Hunter would be my all time favorite one though. It fits the Film Noir description by having dark subject matter, and evil characterizations. Who doesn't get creeped out my the animal screaming that Mitchum does when he's injured??
Good Luck finding these, Dame! I know most are on VHS...but on DVD, I am not so sure.
"My dreams, watching me said, one to the other...this life has let us down."