30 best alien movies of all time, according to fans — and Aliens is only #4

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.
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10 greatest alien sci-fi movies not directed by Steven Spielberg

While Steven Spielberg's Disclosure Day is the talk of the movie world, there have been many other amazing alien films not made by the famous director ...