1926 Marcel Duchamp - "Anemic cinema" (excerpt)
Duchamp is mostly known for his subversive and very influential artworks, like the urinal he submitted as an artwork entitled "Fountain" to a prestigious exhibition in 1917. He also invented a way to create animated 3D illusions on rotating discs, which he called Rototreliefs. For the only film he ever made, he simply had his colleague Man Ray filming 10 Rotoreliefs alternated with 9 discs showing some wordplay in french. He signed the result as his alter ego Rrose Sélavy.
3D illusions were already widespread in the form of stereoscopic photography (invented in 1838), but it seems like Duchamp came up with a unique way to create a different kind of 3D effect. Maybe the film doesn't really add much to the existing discs, but it is a good and authorized registration of the amazing Rotoreliefs.
He appeared in a few films, including the surrealist short "Ent'acte" in 1924.