invasion of the body snatchers(1956)

i love this film..the remake was pretty good too..the one made in the 70's with jeff goldblum in
one of the best sci fi films eva

A small town doctor learns that the population of his community is being replaced by alien duplicates

Never saw the 70's one, only the original, and the 90's
one.

The original is much better, though the "anti-communist"
message of it is sometimes a bit strong.