Cinerama: "The Next Big Thing That Was"...
One of the many innovations in motion picture tech... ...apoleon back in 1927. Cinerama’s widescreen movies were created using three cameras at the same time... ...eled, special equipment was used to both film the movies and project them, and actors had to change the wa... ...and see pictures of the equ...
https://www.neatorama.com/2013/12/06/Cinerama-The-Next-Big-Thing-That-Was/
