Xenophobia (fear of things foreign or strange)
The 1979 classic works on two xenophobic levels: not only can the mysterious, vicious monster (seemingly) not be killed, but it also looks different every time we see it. Blame evolution. Truly, each indescribable design, plus dark spaceship hallways, will disturb anyone clinging to the familiar.
Where to stream it: Rent on iTunes, Amazon, YouTube
Honorable mention: The 'Burbs (1989), Gangs of New York (2002), The Art of the Deal (2016)
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