I assume the beastie on the poster was meant to represent this:
That thing is barely in the film, suggesting that they decided to toss a more overt monster in there for a minute or two just so they could feature one on the poster to draw the kids in. I have to admit, I kind of love AIP for that sort of thing. They could be glorious hucksters. Anyway, the film also showed us Beverly Garland’s spectacular gams, so the ticket buyer can’t complain too much.
It does establish Paul Birch as the first Master of the Flying Guillotine, though.
