Since the earliest days of cinema, filmmakers have realized that the bigger the image, the greater the impact on the viewer. Imagine the difference between watching a film at home on video and the same film at a normal 35mm cinema. The film might be the same, but the experience couldn't be more different. Well, consider the jump from traditional cinema to IMAX® as a similar, dramatic leap. Up to eight stories high, the screens are ten times larger than a traditional cinema screen and fill the whole field of peripheral vision. Made of a reflective and perforated vinyl, the world's largest screens are mounted taut over a scaffold frame. Sound is critical to the IMAX® experience. Speakers positioned in the rear of the theatre and behind the screen provide a total surround-sound system. The film soundtracks are delivered through a mighty 12,000 watt digital sound system.