Look for a young Clint Eastwood in his uncredited movie debut as the leader of the jet squadron that attacks the tarantula in the film's climax.

Plot:
When a tarantula, which has been injected with a special nutrient formula, escapes from a scientist's laboratory it grows into a 100 foot beast that menaces the Arizona countryside.

Bloopers:
Note the positions of the books on the table when the tarantula attacks the house with the heroine in it.