Fortysomething Geek

If you want to waste 15 minutes to learn and enjoy a great history lesson on Cinema and Aspect Ratio, this is worth the time to watch:
Direct Link: http://vimeo.com/68830569

You'll learn how we got 4:3 and 16:9 aspect ratios.

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The Changing Shape of Cinema: The History of Aspect Ratio from FilmmakerIQ.com on Vimeo.