Guarda su Altadefinizione. Filmed in West Berlin, WARM-UPS, by the American conceptual artist Allan Kaprow, is a recreation of a performance originally enacted in Boston, in which individuals assess the flow of body heat from hands, torsos, and feet to adjacent surfaces. As the film’s voiceover itself notes, “Using words and pictures it condenses the times and spaces of the real event into a graphic illustration of what happened.”