For Gehr, SHIFT broke new ground, hence perhaps a pun in its title. The film is his first to employ extensive montage. The actors are all mechanical – a series of cars and trucks filmed from a height of several stories as they perform on a three-lane city street. Gehr isolates one or two vehicles at a time, inverting some shots, so that a car hangs from the asphalt like a bat from a rafter, using angles so severe the traffic often seems to be sliding off the earth, and employing a reverse motion so abrupt that the players frequently exit the scene as though yanked from a stage by the proverbial hook. A sparse score of traffic noises accompanies the spastic ballet mecanique. Not only the action but Gehr’s deliberate camera movements are synced to the music of honking horns, screeching brakes, and grinding gears. The eight-minute film is structured as a series of obliquely comic blackout sketches: trucks run over their shadows; cars unexpectedly reverse direction or start up and go nowhere. –J. Hoberman
Ernie Gehr (born 1943) is an American experimental filmmaker closely associated with the Structural film movement of the 1970s. A self-taught artist, Gehr was inspired to begin making films in the 1960s after chancing upon a screening of a Stan Brakhage film. Gehr’s film Serene Velocity (1970) has been selected for preservation in the United States National Film Registry. Gehr served as faculty at the San Francisco Art Institute. His films are distributed by Canyon Cinema in San Francisco. —Wikipedia