How are femme fatales portrayed in classic film noir?

In classic film noir, the femme fatale is portrayed as a seductive, intelligent, and amoral figure who uses her beauty and cunning to manipulate men, often leading them toward destruction. These characters are frequently depicted as "spider women" who are comfortable in the dark, cynical world of the genre, using their sexual attractiveness to gain power or wealth.12

Common portrayals include:
* Manipulative Schemers: They often conspire to commit crimes, such as murdering a spouse to secure financial gain.12
* Complex Motivations: While often viewed as dangerous, these women are sometimes portrayed as victims of physical or emotional abuse within violent or passionless marriages, with their vengeance serving as a desperate means of escape.2
* Symbolism of Shifting Roles: Emerging during and after World War II, the archetype reflected societal anxieties regarding changing gender roles and the perceived threat of independent women.13

Due to the Hays Code, which restricted depictions of immorality, these characters were typically punished by the film's conclusion.1