Biography: Marc-Gilbert Guillaumin, professionally known as Marc'O, is a French filmmaker, playwright, and actor renowned for his avant-garde contributions to theater and cinema. Born in Clermont-Ferrand, he joined the French Resistance at 15 and was injured in Auvergne. By 20, he immersed himself in Paris's artistic circles, hosting poetry readings alongside Boris Vian at Le Tabou nightclub, a hub for the Lettrist movement. Marc'O's notable works include the film Les Idoles (1968), which satirizes the music industry, and the play Closed Vision (1954), adapted into a film in 1954. His work is characterized by its experimental nature and critique of societal norms.