When I was in college, a cinema studies course required that we students watch at least two of the eight hours that make up Andy Warhol’s 1965 film, Empire. The screening began. We were looking at the Empire State Building, filmed in black and white and in slow-motion. That shot remained, all but unchanged, for the movie’s entirety. Warhol’s avant-garde filmography used this method frequently. He would record still shots, and then slow the frames-per-second in order to create hardly-moving portraits. In his Screen Tests, the subjects are people. The project is made up of 472 snippets, most of them lasting only a few minutes. Bob Dylan is featured in one; Edie Sedgwick, Lou Reed, Yoko Ono, and Allen Ginsberg are in others. The Andy Warhol Museum’s Film Initiative has compiled a selection of eight Screen Tests, and will be showing them at Christie’s Los Angeles. —Jack Sullivan