This diagram, published by Cinerama Films, Inc., gives the clearest idea of the complexities involved in the Cinerama experience. At the bottom you see a camera man recording on three film reels, capturing a broad view. At the same time, multiple microphones are placed to capture a wide range of sounds. At the top, a trio of projectors work to cover the curved three part screen.

While the diagram does it’s best to sell Cinerama, it points out one of the process’ biggest flaws. Looking at the auditorium, it’s clear that people in the center would have an immersive experience, but those on the farther ends certainly were clearly at a less enveloping event.

(credit: American Theatre Architecture Archive, Theatre Historical Society of America)