Marc'O
Marc'O (born Marc-Gilbert Guillaumin; April 10, 1927 – June 11, 2025) was a French filmmaker, playwright, author, and avant-garde theorist. A prominent figure in post-war European counterculture, he is best known for his contributions to the Lettrist movement in the 1950s, his satirical film Les Idoles and avant-garde theatre work which launched the careers of key countercultural actors such as Bulle Ogier, Pierre Clémenti, and Jean-Pierre Kalfon.