In the late 1960s and early 70s, a bizarre alliance between the Filippino movie company Hemisphere and the American exploitation outfit Independent International yielded a series of weirdly interconnected horror movies, most of which work the word Blood into the title. The Filippino items are strangely fascinating vampire and mad scientist pictures with oddball colour effects and a mix of naive serial-style thrills and extreme-for-the-era sex and gore; the American efforts, from director Al Adamson, are shoddier, thrown together from offcuts of previous pictures, and are lead-paced but nevertheless curiously appealing. Gaze in awe at mutant killer trees, slobbering hunchbacked servants, faded matinee idols, stripper-turned-actress heroines with concrete blonde hairdos, evil dwarves, John Carradine or Lon Chaney, footage cut in from completely different films, Dracula and Frankenstein meeting hippies and bikers, red filters when the vampires attack, chanting natives! Plus lots of exclamation marks! Plus lurid trailers!

In Horror of the Blood Monsters vampires are overrunning Earth (cheaply), so John Carradine leads a space mission (rocket footage from another film) to the planet the bloodsuckers come from, and the astronauts vaguely interact with tinted black and white footage from a Filippino prehistoric epic. It makes no sense whatsoever. --Kim Newman