Codes and convention of a film noir
-Low and high angles, extreme close-ups, deep focus (depth of field) -Reflections, views, faces -Dutch tilts Mise-en-scene, in an urban setting -Low key lighting, dark black and white - Melancholy downbeat music -Non-linear -Usually shot day for night scenes Characters -C ops -Anti-heros -Minor characters who are just as significant as protagonist -Detectives -Femme Fatale -Outcasts who end up being murdered