Queen of Blood (1966)
1) John Saxon. 2) A young Dennis Hopper. 3) A vampire queen from outer space with cray hair who manages to pick off the cast one at a time just by walking up behind them while they pointedly look away. Lesson? If you're stuck on a spaceship with a blood-sucking alien vampire queen, maybe DON'T turn your back on her! AKA "Planet of Blood." It seems there is a color version and a b&w version.
The alien has a hair style like a killer troll doll, how can Rifftrax NOT riff this one??
Oh, and it’s fully Cormanized, though his name is in the credits.
Added bonus: sound effects recycled from War of the Worlds and Forbidden Planet. This film was made while Kubrick was working on 2001: A Space Odyssey. Good for riffs like, “Oh, Kubrick totally ripped that off. That’s where he got the idea for....” The special effects are terrible, the story is stupid, the sets look like a student studio TV production—mission control is a small room with maybe six people, the dialogue is dreadful. It’s got all the hallmarks of an AIP film, cheapness high up on the Frank Zappa Cheapness scale. There’s a lot of walking so it’s not like you’d have to squeeze the jokes in. Clearly by this point in his career Dennis Hopper had taken a lot of LSD. A lot of it is laughable enough that you don’t even have to write that many gags.