Add Yahoo as a preferred source to see more of our stories on Google. Alien Day was this past Sunday (April 26), and to celebrate one of the best sci-fi horror franchises of all time, HBO Max has just ...

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.