Tralfaz Sunday Theatre – What On Earth!

Here’s another neat cartoon from the National Film Board of Canada. It was released in 1966. The description from the Board's web site:

This animated short proposes what many earthlings have long feared – that the automobile has inherited the planet. When life on Earth is portrayed as one long, unending conga-line of cars, a crew of extra-terrestrial visitors understandably assume they are the dominant race. While humans, on the other hand, are merely parasites. An Oscar® nominee, this film serves as an entertaining case study.

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