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.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: FlixPix / Alamy ...

Alien invasion stories have been around for decades, and some of sci-fi's most interesting entries are often overlooked or ...