As early as silent film, directors attempted to create widescreen images. But in the 1950s it became a commercial necessity to give the multitude of new TV watchers what they couldn’t get on a small screen. So even before CinemaScope, VistaVision, Todd-AO and Panavision, there was Cinerama — a process in which three projectors threw three simultaneous images onto a gigantic curved screen. Cinerama offered what no TV or movie screen could provide before — peripheral vision, which could make you feel as if you were really in the midst of the action.