Tarantula - 1955 - 6/10

So, this isolated desert laboratory is experimenting to enlarge lifeforms for food.
Outstanding, if you are growing huge wheat sheaves or super-colossal shrimp.
But when a spider gets exposed to the growth hormone, away it goes, and away it grows.
Chowing down on livestock and moronic humans who don’t know to run from a gigantic arachnid.
As a kid, I found this notion plausible, growth hormone, I mean.
Still a good late-nite monster flick, one of the better bug ones (yes, and a spider ain’t no bug).