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(1953) A spaceship from another world crashes in the Arizona desert and only an amateur stargazer and a schoolteacher suspect alien influence when the local townsfolk begin to act strangely
(1975) Don Johnson plays a young man in a post nuclear war world who has an interesting friend, a telepathic dog. The dog gives him an advantage in dealing with the barbaric world he lives in.
(1964) a group of scientists create a portal that takes them to a barren, mutant inhabited, Earth in the year 2071
(1956) a small town doctor learns that the population of his community is being replaced by emotionless alien duplicates