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.
1947
1973
1952
1929
1988
1970
1944
1975
1986
1979
1969
1980
1977
1971
1976
1981