From Wikipedia, the free encyclopedia. Hélène Vincent, born 9 September 1940, is a French actress. She received a César Award for Best Actress in a Supporting Role in 1989 for her role as Madame Marielle Le Quesnoy in Life Is a Long Quiet River and another in 1992 for J'embrasse pas. Description above from the Wikipedia article Hélène Vincent, licensed under CC-BY-SA, full list of contributors on Wikipedia.