This Is Cinerama is a 1952 American documentary film directed by Mike Todd, Michael Todd Jr., Walter A. Thompson and Fred Rickey and starring Lowell Thomas. It is designed to introduce the widescreen process Cinerama, which broadens the aspect ratio so that the viewer's peripheral vision is involved. This Is Cinerama premiered on September 30, 1952, at the Broadway Theatre in New York City.

Plot

The film begins in black and white and the standard Academy ratio (also presented in mono sound) as travel writer and newscaster Lowell Thomas appears to discuss the evolution of film entertainment, from the earliest cave paintings designed to suggest movement to the introduction of color and sound. At the conclusion of the 12-minute lecture, Thomas speaks the words "This Is Cinerama" and the screen expands into the full Cinerama 2.65:1 aspect ratio and full color as a series of vignettes, narrated by Thomas, begins.