Some favorite French films noirs (the French coined the expression Film Noir):
Jacques Becker's 'Touchez Pas au Grisbi' (with the great Jean Gabin)
Jules Dassin's 'Rififi'
Jean-Pierre Melville's 'Bob le Flambeur', 'Deux Hommes dans Manhattan',, ' Le Doulos', 'Samourai', etc...
Claude Sautet's 'Classe Tout Risque' (with Lino Ventura and a young Jean-Paul Belmondo)