This Island Earth
Best 1950’s Sci-fi film ‘eva.
Spectacular, beyond belief
https://m.youtube.com/watch?v=hR7e3StbXoU
Have you read the book?
Did so for the first time around Christmas. Well worth it. Different in many ways, the title is well defined and explained as it relates to American history.
Sorry, no mutant ant, although it’s on the cover for cinematic posterity.