Is friends with actors Anna Karina and Jean-Paul Belmondo.Has a daughter named Dominique.In 2002 she published her autobiography.Since 2001, she's been active in the organization UNICEP, which works to fight against multiple sclerosis, which she suffers from.Her longtime husband Serge Rousseau, who started as an actor, later became an agent and founder of the Artmedia agency, which discovered actors such as Isabelle Adjani, Miou-Miou, Gerard Depardieu, Nathalie Baye and Sandrine Bonnaire.Both she and her husband Serge Rousseau were close friends of Francois Truffaut.Francois Truffaut was the responsible for her name change from Claudine Huze to Marie Dubois after he suggested she change it after a book title Marie Dubois.In a 2005 interview, Marie said that Francois Truffaut was her first love and that she thinks he was in love with her too during the time they were filming of Shoot The Piano Player (1960) and although they never had an affair they remain close friends until Truffaut's death in 1984.Good friends with actors Michel Piccoli and Jean-Louis Trintignant.Attended Yves Montand funeral along with Michel Piccoli, Gerard Depardiu, Catherine Denueve and husband Serge Rousseau.Mother of actress Dominique Rousseau (born in 1964) with late husband actor Serge Rousseau.