As part of a University of Chicago symposium on his career, avant-garde Andrew McCall will present three works: the 2005 installation You and I, Horizontal (Fri-Sat 2/24-2/25, 6 to 10 PM) and the 30-minute films Line Describing a Cone, from 1973 (Fri 2/24, 8 PM), and Line Describing a Cone 2.0, from 2011 (Sat 2/25, 6:30 PM).