The animated pornographic movie was made and produced by various animated studios in tandem, with each studio working covertly, producing the sections at night. .
http://en.wikipedia.org/wiki/Eveready_Harton_in_Buried_Treasure
Wikipedia ascertains it was made to honour the birthday of animation pioneer Windsor Mckay.
The main thing i find interesting about this film is the introduction of bestiality, which though disturbing has to be a response to the Hays morality code which asked that animals wear trousers and female animals wear dresses (particularly cows). The racism of the time is manifested by the mexican stereotype.
These types of films show that the past which some naively believe to be innocent, of sexuality, predjeduice and corruption was in fact less progressive than our own.
I added my own soundtack since the film was silent, the low resoloution is due to the films ageandthe reproduction process.
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I will be using this video in art.