1. A surround vision apparatus comprising: at least two screens, at least one loud speaker, a plurality of projectors, and at least one processor, wherein the at least two screens substantially enclose a space, the plurality of projectors project images onto the said at least two screens such that the said images may be viewed from within the said substantially enclosed space, the processor synchronises the projection of images onto each screen such that the images are perceived by the viewer as being uninterrupted, adjacent screens join at a vertex and wherein the joints are substantially seamless, each screen is attached to a frame by fastening means that comprises a flexible end portion of each screen, which end portion in use extends over the frame and is attached thereto, wherein the fastening means includes a clamping member which, in use, clamps the flexible end portion of the screen to an outer part of the frame.