Which director is NOT commonly associated with the Film Noir genre?

Martin Scorsese is not commonly associated with the Film Noir genre. His directorial work primarily spans other styles and movements, notably the New Hollywood and gangster film genres. While some of his films may incorporate elements typical of Film Noir, such as moral ambiguity and anti-hero characters, they do not fit within the classic conventions that define Film Noir, which emerged primarily in the 1940s and 1950s.

In contrast, Fritz Lang, Orson Welles, and Alfred Hitchcock are key figures in Film Noir. Lang directed seminal films like "M," which laid groundwork for the genre, while Orson Welles is known for "Touch of Evil," a quintessential Noir film featuring the genre's hallmark visual style and themes. Hitchcock’s films, though more often categorized as suspense or psychological thrillers, frequently employ Noir elements, such as complex characters and shadowy cinematography, making him a significant figure in the broader context of this film style.