James Cameron’s Avatar hit a big international success. With this success, 3D stereoscopic cinema emerged as a new dominant media format. In principle, the stereoscopic cinema imitate the vision of the human being who has two eyes. The stereoscopic cinema shoot with 2 connected cameras at the same time and overlap the 2 different images. With the stereoscopic glasses, the human being can see the overlapped images as a single 3D stereoscopic image. The emergence of this 3D stereoscopic cinema changes the spectatorship of the cinema. Three factors influence the spectatorship. 1)The subject of the film experience can be influenced by the restriction which imposed by the principle of the stereoscopic cinema. Marshall McLuhan’s assertion “media is a message” means that the new media changes the condition of the human perception. 2)The principle of the stereoscopic cinema influence the spectatorship. the convergence point, safety zone become the parameter of the directing. The spectacle that the stereoscopic images make becomes the key point of the narrative. 3D stereoscopic cinema find the new convention that join the spectacle and the narrative motivated this spectacle. 3)The industrial elements influence the form of the stereoscopic cinema and the spectatorship. The dynamic force of the 3D stereoscopic cinema comes from the film industry which search the new market and the consumer-electronic industry which also search the new hardware market. Another key element of these industrial elements is the theater. These three factors which influence the spectatorship are not entirely new. Eventually,3D stereoscopic cinema is the part of the cinema and the experience of the spectators is not entirely different. But, the evolution of the technology of the 3D stereoscopic cinema will change the spectatorship eventually.