Грехи преподобного / Sins Of Reverend Star (The Sinful Pleasures of Reverend Star) (1976)

This stinker belongs to the latter group, a Frisco-made amateurish porn film about the uninteresting antics of the title character. Its DVD reissue is for diehards.
The thinnest of plot lines is delivered as an excuse to present wall-to-wall sex footage. Opening credits in fact are scrawled on a wall, to save optical printing costs.
Interracial cast makes for mixed combo action -very very popular in the late '70s on screen. Unfortunately, the sex depicted here is 100% mechanical, with zero passion.