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How does Catherine challenge conventional behavior in Jules and Jim?

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French director Francois Truffaut stands at right speaking with Jean-Paul Belmondo and Catherine Deneuve during filming of La Sirene du Mississippi on a city street. — François Truffaut François Truffaut (far right) with Jean-Paul Belmondo and Catherine Deneuve during the filming of *La Sirène du Mississipi* (1969; *Mississippi Mermaid*).

In the 1962 New Wave film Jules and Jim, the character of Catherine, played by Jeanne Moreau, challenges conventional behavior by actively defying societal expectations regarding relationships and personal conduct.1

Described as a free-spirited woman, Catherine prides herself on rejecting traditional norms. Her challenge to convention is most notably expressed through her romantic life; although she marries Jules, she expands their relationship to include his best friend, Jim, effectively engaging in a love triangle that operates outside the boundaries of conventional monogamy.1

Throughout the film, Catherine is portrayed as a "classic New Wave woman"—heedless and unpredictable—who maintains a sense of autonomy that often leaves the men in her life struggling to understand her. Her behavior is central to the film's exploration of sexual tragedy and the complex dynamics between shy, traditional heroes and boldly emancipated women, a recurring theme in the work of director François Truffaut.12