Complex sentence: Cinerama is the trademarked name for a widescreen process which works by simultaneously projecting images from three synchronized 35 mm projectors onto a huge, deeply-curved screen, subtending 146 ° of arc, and for the corporation which was formed to market it.
Split into simpler sentences: Cinerama is the trademarked name for a widescreen process which works by simultaneously projecting images from three synchronized 35 mm projectors onto a huge, deeply-curved screen, subtending 146 ° of arc. It is also the trademarked name for the corporation which was formed to market it.