The term 'dark, in film' can be summarized by the word 'NOIR'. NOIR is a genre of film that originated in the 1940s and 1950s. It is characterized by dark and often pessimistic themes, as well as a focus on crime and moral ambiguity. NOIR films often feature a femme fatale, a mysterious and seductive woman who leads the protagonist into danger. NOIR films are often set in urban environments and feature a cynical view of human nature.