We are again indebted to Sim for the following "fun fact" which is taken from Bryan Bird's 2010 Amazon review of Norman Warren's 'Satan's Slave' (1976) / 'Terror' (1978) DVD twin-pack release:
"In 'Terror' one of the doomed Garricks is a film producer, and in his office you can see the promotional posters for both 'Satan's Slave' and 'Thriller' (which, as far as I know, Warren didn't have anything to do with). The implication is that Garrick is sort of a low budget schlock film producer, which is, I suppose, some kind of ironic commentary on how Warren felt about his own films."
Best wishes,
Terry -
www.quadbod.co.uk