Andy Warhol's films conceal their art exactly as his paintings do. The apparently sloppy and unedited is fascinating. What holds his work together in both media is the absolute control Andy Warhol has over his own sensibility—a sensibility as sweet and tough, as childish and commercial, as innocent and chic, as anything in our culture. Andy Warhol's eight hour Sleep movie must be infuriating to the impatient or the nervous or to those so busy they cannot allow the eye and the mind to adjust to a quieter, flowing sense of time. What appears boring is the elimination of incident, accident, story, sound and the moving camera…. The slightest variation becomes an event, something on which we can focus our attention. As less and less happens on the screen, we become satisfied with almost nothing and find the slightest shift in the body of the sleeper or...