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Horror of the Blood Monsters (1970)

In the near future with a intergalactic vampire plague threatening earth, an expedition is sent to a distant galaxy in hopes of discovering the plague's source. Landing on a mysterious ... See full summary »


Al Adamson


Sue McNair (screenplay)

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Complete credited cast:
John Carradine ... Dr. Rynning
Robert Dix ... Dr. Manning
Vicki Volante Vicki Volante ... Valerie
Joey Benson Joey Benson ... Willy
Jennifer Bishop ... Lian Malian
Bruce Powers Bruce Powers ... Cmdr. Steve Bryce
Fred Meyers Fred Meyers ... Bob Scott
Britt Semand Britt Semand ... Linda


In the near future with a intergalactic vampire plague threatening earth, an expedition is sent to a distant galaxy in hopes of discovering the plague's source. Landing on a mysterious planet they discover that Spectrum radiation has turned the atmosphere into a one-color tint. Exploring further, the group discovers living dinosaurs, a race of vampire cavemen, and other strange creatures. Written by Jeremy Lunt <durlinlunt@acadia.net>

Plot Summary | Plot Synopsis


Far-Out, Frightening Terror! See more »


GP | See all certifications »






Release Date:

1 February 1970 (USA) See more »

Also Known As:

Creatures of the Prehistoric Planet See more »

Company Credits

Show more on IMDbPro »

Technical Specs


Sound Mix:




Aspect Ratio:

1.85 : 1
See full technical specs »

Did You Know?


Director Al Adamson loved the film Tagani (1965)--which comprises much of this film--when he saw it in the mid-'60s so he purchased the rights himself. See more »


Although Robert Dix is billed in the credits as "Dr. Manning", he is referred to in the film as "Col. Manning". See more »


Referenced in Adjust Your Tracking (2013) See more »

Frequently Asked Questions

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User Reviews

...put three old films in a blender. Garnish and serve.
14 April 2005 | by EyeAskanceSee all my reviews

A ragged, befuddling palimpsest comprised from the detritus of no fewer than three unrelated pre-existing films, all shuffled together within a framework of "new" scenes(added, I suppose, to bring some degree of cohesion to the amalgamated mess at hand). Success? ....erm....hardly. In fact, watching this tatterdemalion patchwork is like staring at one of those damn squiggly-dot pictures...eventually, you might catch a fleeting image of a snow-boarder or something, but was it really worth the headache in the end?

Well, there is actually some sub-atomic particle of a story straining to emerge from all the disorder...as I see it, there's a spaceship that has landed on a planet which is the origin of all vampires, as well as home to various other predatory monstrosities and a tribe of peaceful cave-people. The bizarre atmospheric conditions of this planet cause everything to appear as color-tinted black-and-white, the tint randomly changing from blue to red to green and so forth. During one scene set inside the spaceship, an astronaut is looking through a periscope-type of device. The view presents a grid with marked north, south, east, and west coordinates. I'm certainly no science brain, but don't those points of direction become "lost" once you have left the Earth? Hmmm...whatever.

John Carradine is in this flick. A little. He looks sort of embarrassed...he knows very damn well that this is a petrified turd of a film, but as the patron saint of undiscriminating "any old thing for a paycheck" movie stars, he sails through the muck like an old pro.

He would have stripped to a thong at your bachelorette party for fifty bucks. I guarantee it.


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