1. A method of superimposing subtitling on stereoscopic imagery, the stereoscopic imagery comprising a plurality of paired stereo images having a perspective and providing a stereoscopic scene, wherein each image of a given pair represents a perspective of the imagery as viewed by a single eye of the stereoscopic scene, the method comprising: imprinting a subtitle solely upon one image of the stereo pair of images of at least some of the stereoscopic imagery.