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.
1969
1963
1977
1941
1968
1949
1944
1980
1971
1959
1953
1952
1950
1967
1964
1930