The ends of the stage were flanked by enormous projection screens, where real-time video footage from the stage performance was blended with prerecorded visuals. These end screens also served to block off a backstage area for the performers and technicians. Performers could enter the stage from behind the screens, from below (via several trap doors) and from above (via an elaborate system of motorized lifts). Two semi-transparent screens could slide out in front of the stage to turn both sides of the stage into a massive projection surface, roughly the equivalent in width of four IMAX screens.