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.
1940
1963
1991
1961
1996
1980
1930
1965
1960
1950
1969
1970
1927
1958
1959
1956
1942
1955
1968