For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

Steven Spielberg's Disclosure Day is the latest movie to tackle the subject of first contact, but these masterpieces understood the idea much better.

Movies that center on the battles fought by members of the military certainly have their place, but sometimes it's more fun to see what (albeit, fictional) soldiers might do against an alien combatant ...