Obvious one is Giant Gila Monster and Killer Shrews since Ray Kellogg worked on both of them.
Here’s a double feature with a chaser for you: I Accuse My Parents and The Violent Years, with the short What About Juvenile Delinquency? snuck in (since I feel The Violent Years is if the other two got together and had a daughter.)
I would have gone with “Morality Science Theater” myself, but that works too.
Another two to connect: Gunslinger and Last of the Wild Horses for a western comparison. Beast of Hollow Mountain doesn’t fit because of the giant monster in it compared to these two normal westerns.
Yep. Those movies were specifically produced at the same time and made to play in double feature venues. I’m pretty sure there were other MST films that played in double features with each other. Off the top of my head, both It Conquered the World and The She-Creature were in a double bill together.
I think the Hired saga would make a good double feature, and only partly because of the short. You start with Bride of the Monster and go into Manos, almost saying “you think that was bad?” as you move from a bad film made by someone who at least had a general idea what he was doing to… Manos.