She most notably played the role of Madame Lajoie in François Truffaut's Academy Award for Best Foreign Language Film winner, Day for Night (1973) (originally billed as La Nuit américaine, France) for which Truffaut was also nominated for the Academy Award for Best Director.
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1973 : La Nuit américaine (official release) / Day for Night (USA release) (Motion Picture/Film) directed by François Truffaut, starring Jacqueline Bisset, Jean-Pierre Léaud - Zénaïde Rossi credited as "Madame Lajoie"