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Film Noir is a genre of crime films that typically feature a dark, pessimistic, and cynical view of the world. The films often feature hard-boiled detectives, femme fatales, and corrupt police officers. Robert Ryan was an American actor who starred in many Film Noir films, including "The Set-Up", "Crossfire", and "The Big Heat". Ryan's portrayals of tough, cynical characters helped to define the Film Noir genre.