No montage, no human subjects, minimal visual content, and the artists basically pissing on the fourth wall by calling attention in every way possible to the artifice of what they’re doing. Preserved by the Academy Film Archive in 2009.
1970
1961
1991
1947
1958
1965
1964
2002
1974
1920
1993
1934
1976
1941
1945
1960
1955
