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.
1974
1999
1941
2003
1921
1984
1951
1972
1998
1943
1950
1963
1957
1988
1939
1954
1987