20th Century Studios
- The "Alien" franchise is one of the most beloved in the sci-fi genre.
- Here are all nine movies in the franchise, ranked.
- See where the latest one, "Alien: Romulus," lands on the list.
More than four decades after director Ridley Scott began the "Alien" franchise with the classic 1979 film starring Sigourney Weaver, we're still being treated to movies set in that strange and terrifying universe.