Very interesting. The History of Aspect Ratio. John Hess traces the evolution of the screen shape from the silent film days through the widescreen explosion of the 50s, to the aspect ratio of modern digital cameras.
This lesson is part of the FilmmakerIQ course: "Everything You Need To Know about Aspect Ratio".
The Changing Shape of Cinema: The History of Aspect Ratio from FilmmakerIQ.com on Vimeo.