Many thanks to reader "MAMBO LUPITA de AZTLAN" who submitted this as a possible precursor to our "belly-button dick crucifixion airplane" theme, along with this comment:
"this may be one of the earliest examples of the favorite category(?)
"since I first saw it in a scan of a 1971 issue of the East Village Other, an "underground" paper, I initially assumed it was a hip, in-crowd satire of some ridiculous, prurient (and square!) Hollywood *sex sells* archetype.
"but no, that really is an ad for a movie. THE ad for THIS movie, in fact. But a 2011 google search for the image has not been successful -- imbd doesn't give a pic, neither does wikipedia, hahaha, big surprise the studio wants to forget all about this one...
happy trails, peace & love"