Ridley Scott's sci-fi classic premiered in 1979, and starred Sigourney Weaver, Tom Skerritt, and Harry Dean Stanton.

Watch the Alien franchise in order with our comprehensive list, from the 1979 original to Alien: Earth, and including the Alien vs. Predator crossovers. When you purchase through links on our site, we ...

Add Yahoo as a preferred source to see more of our stories on Google. Looking for the definitive ranking of the Alien movies? We've got you covered. It's been 46 years since Ridley Scott's original ...