What is cinema? asked André Bazin. What is filming? asks filmmaker André S. Labarthe today, across five conversations gathered over time from various publications: what is it to film dance, to film painting, to film cinema itself, to film literature? Labarthe's hypotheses can be funny, serious, unpredictable or audacious; pairing Hitchcock with Edgar Allan Poe is no longer very original, but comparing Philippe Sollers and John Cassavetes is risky, moving from Carolyn Carlson to Ushio Amagatsu a real stretch, and making Artaud speak with Bazin or Van Gogh with Mandela a tour de force. Le Triboulet is a book of correspondences, a railway junction, as Labarthe himself might say.