Teenage Caveman (1958 film)

Robert Vaughn stars as a 35-year-old teenage caveman with styled hair who seeks to discover what is in the uncharted jungles beyond his tribe's campsite. It is against the Word (and the Word is the Law), but he breaks it anyway. Soon he discovers a strange creature that kills with its touch. We later learn that this is not a prehistoric tale, but a post-apocalyptic tale, and the strange creature is a 500-plus year old irradiated scientist in a radiation suit.

For the Mystery Science Theater 3000 version, please go to the episode recap page.

Tropes used in Teenage Caveman (1958 film) include:

After the End: Though we don't learn this until scientist starts his post-mortem narration.
B-Movie:
Dawson Casting: Vaughn is closer to a thirtysomething caveman, to be honest.
Roger Corman: Is responsible for this.
Stock Footage: Wouldn't be a Corman movie without it!