Dead End Drive-In is not a filmed version of these novels; it came before them because Australia was trapping young people at drive-ins first.

12. The Complete Drive-In (Three Novels of Anarchy, Aliens, and the Popcorn King) – Joe R. Lansdale

A horror movie marathon at a drive-in in East Texas sounds like a good idea until you end up stuck there for the foreseeable future. Then the cannibalism sets in and the Popcorn King takes over and, well, it’s not a good time, but it is a good time for the reader if you know what I mean and I think you do. Of course, when you do get out of that drive-in, there are dinosaurs and later a giant catfish that swallows the bus you’re in, but sometimes you just have to go along with the ride for three books’ worth of total insanity and B-movie madness. And a lot of cannibalism.

Speaking of trapped, Ozma could explain cannibalism to Finny, but he can just eat his way out of the pumpkins as an herbivore.