The first chapter uses Marcel Duchamp’s only surviving film, Anémic Cinéma, to show how proprioceptive aesthetics is a crucial alternative to the modernist aesthetics that orients most of film and media theory, emphasizing their decisively different structures of reflexivity. Anémic Cinéma creates an illusory depth in the coupling between the cinema and its viewers’ bodies: it configures the cinema as an optical device, or a machine for the modulation of its viewers’ perception. In place of representation, it engenders voluptuous illusion. It becomes a schematic diagram for an alternative to modernism, for proprioceptive aesthetics.