She made her cinema debut at the age of 18, playing Marie, the lead character in Robert Bresson's Au hasard Balthazar (1966).

[1] Wiazemsky made her on-screen acting debut at the age of 18, playing Marie, the lead character in Robert Bresson's Au hasard Balthazar (1966) after being introduced to the director by the actress Florence Delay.

[8] In addition to acting, Wiazemsky wrote several novels, including Canines (1993), Une Poignée de Gens (1998), and Aux Quatre Coins du Monde (2001).

Hymnes à l'Amour was filmed in 2003 as Toutes ces belles promesses (All the Fine Promises), directed by Jean-Paul Civeyrac and starring Valérie Crunchant and Bulle Ogier.

[11] In 1971, Wiazemsky signed the Manifesto of the 343, which publicly declared she had an abortion as a way to advocate for reproductive rights; the procedure was illegal in France at the time.