CinemaScope

 The term commonly refers to widescreen processes or anamorphic techniques, that use different magnifications in the horizontal and the vertical to fill the screen; it is also the specific trademark name for 20th Century Fox’s commercially successful widescreen process which uses an aspect ratio of 2.35:1 (originally it could be as wide as 2:66:1) – to compete with Cinerama and 3-D processes in the 1950’s.