Pin-Up Girls.

This movie centers around a group of mid-1950's lingerie models who start taking risqu photos and 8mm movies of themselves at home, they then sell them through ads in what were known as "girly magazines." Dating to a time when the home video player had yet to be invented, this type of mail order scheme was one of the earliest forms of commercially available pornography, and the choice of smut connoisseurs in the 1950's.