David Lynch once said, “films are 50 per cent visual and 50 per cent sound. Sometimes sound even overplays the visual”.He’s got a point: imagine Jaws without the dramatic ‘dun-dun’, 2001: A Space Odyssey without the visceral sound effects, or even – gulp! – Jurassic Park without its memorable theme.
Source: 19 of the best film scenes to test surround sound | What Hi-Fi?