A little more confusion. There is another film shooting standard, called Super35. The most prominent user of
Super35 is director James Cameron; "Terminator 2", "True Lies" and "Titanic" were shot in this format. Super35
is kind of a mixture between flat and anamorphic. The camera shoots an unsqueezed picture in 1.33 : 1 aspect
ratio. An excerpt of this frame is copied to an anamorphic 2.35 : 1 picture. The fullscreen presentation
shows nearly the entire picture, similar to flat films. With Super35 it is easier to get a large picture for the movie theatre and a better transfer for TV or video. The theatrical widescreen presentation has more visual information
at the sides, the fullscreen version has more information at the top and bottom. As an advantage Super35 works better at low light levels and does not produce optical distortions, but the picture is more grainy than an anamorphic film and the printing is less convenient.
For better understanding a few comparisons between theatre and TV/Video: