[pessimizer]

Aside from the great technical trivia, it looks like the late Mike Vraney at SWV found this movie and saved it:

https://www.somethingweird.com/product_info.php?products_id=...

https://www.iafd.com/title.rme/title=adultery+for+fun+and+pr...

http://distribpix.com/blog/adultery-fun-and-profit-1971