René Clair - Entr'acte (1924)

"In his search for 'pure' cinema, René Clair followed the Dadaist approaches of photomontage (as advocated by John Heartfield—a technique which involved 'the meeting place of a thousand spaces'), and the random (as advocated by Tristan Tzara). True to those premises, Clair juxtaposed images and events as disparate as a chess game played by Marcel Duchamp and Man Ray, a cannon ignited by Erik Satie and Francis Picabia, a funeral where the coat of arms bearing the initials of Satie and Picabia was displayed, a ballerina, a sniper, inflatable balloon heads, the Luna Park rollercoaster, etc."
YouTube: Part 1/2, 2/2