For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.
These wildly different films explore the wondrous, and sometimes terrifying possibilities of contacting extra-terrestrial life.
Screen Rant on MSN
Every alien in Steven Spielberg sci-fi movies, ranked by threat level
Spielberg has graced the silver screen with countless creative alien species in his career, and some have shown to be more ...
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