The excerpt from the Italian movie "Grunt!" showing an ape removing his head and using it as a rocket to blast off into the sky was also featured in Troll 2. In both cases, it's a movie shown within the movie. In Troll 2, a group of young guys in an RV are watching the ape movie on television, and here it's at a drive-in.
Josie Bissett's feature film debut.
Music from Zombie 5 Killing Birds is used here. It was also used in the Deep Blood and The Crawlers.