The term 'NOIR' is used to describe a genre of film characterized by dark and atmospheric elements. It is often associated with crime dramas, detective stories, and suspenseful thrillers. NOIR films typically feature morally ambiguous characters, bleak settings, and a pessimistic outlook. They often explore themes of corruption, betrayal, and moral ambiguity. NOIR films are known for their use of shadows, low-key lighting, and expressionistic camera angles.