Query: 1920s avant-garde and experimental films
Relevant documents:
Un Chien Andalou
The Seashell and the Clergyman
The Life and Death of 9413: a Hollywood Extra
Berlin: Symphony of a Metropolis
Symphonie diagonale
Rhythmus 21
A Page of Madness
Man with a Movie Camera
In Spring (1929 film)
Opus IV (film)