Watch Sound Mirrors Online Avalaible Now [ FREE ] Select your Language : Dean filmed huge concrete, curved structures built in Dungeness in the UK, which date back to the 1920s. They were constructed as a pre-radar sound tracking system, where the curved concrete structures gathered sound which were listened to ... Watch movie online - EN Watch Movie trailer Download Links - EN Language SD Quality - EN HQ Quality - EN HD Quality - EN HD Quality - EN 4K Quality - EN 8K Quality - EN