This 1957 movie actually sounds compelling. Though it may be a mix of The Invasion of the Body Snatchers meets The Most Dangerous Game, and in that sense might not be the most original movie script, I certainly have given less worthy pics a flick. I'll look for this one, thanks!
The memory of the movie is probably better than the execution. I must have been about ten years old at the time.
As crazy as it sounds, for that time it was a 'hopeful' movie because we lived in a dull fear that the world would end with another World War and Nuclear arms being deployed.
That 'aliens' could come and disturb the status quo and 'save us' was a faustian deal at best.
Interesting you bring up Invasion of the Body Snatchers and that whole Twilight Zone, Night Gallery generation of dull fear of the unknown. A very disturbing and distracting time.
Planet of the Apes was a thinly veiled version of Animal Farm.. many of the classics were turning up in dramas without the general public realizing it.