Leslie Thornton will present the remarkable, mind-boggling feature-length black-and-white work in progress that she has been making since 1981–a postapocalyptic narrative about two children feeling their way through the refuse of late-20th-century consumer culture. Thornton utilizes a wide array of found footage as well as peculiar, unpredictable, and often funny performances from two “found” actors. The five highly idiosyncratic episodes, which include passages in both film and video, represent the most exciting recent work in the American avant-garde that I know–a saga that raises questions about everything while making everything seem very strange. Don’t miss this. (Film Center, Art Institute, Columbus Drive at Jackson, Wednesday, October 3, 6:00, 443-3737)