Alien is a sci-fi/horror film franchise produced by 20th Century Studios. It follows the adventures of Ellen Ripley and her battles with a hostile extraterrestrial lifeform known as the Xenomorph, the titular creature of the franchise. In March 20, 2019, the Walt Disney Company acquired 20th Century Fox, thereby granting Disney ownership rights to the Alien intellectual property.
Alien is one of the movie franchises represented in The Great Movie Ride at Disney's Hollywood Studios. The guests enter the Nostromo during Ellen Ripley's confrontation with the Xenomorph, at which point the Xenomorph threatens the guests. In addition, there had been plans to include a theme park attraction based on the Alien franchise, but due to the dark, violent, and disturbing content of the films and the perception that they did not align with the wholesome tone of the Disney theme parks, such an attraction never came to fruition (though there was briefly an attraction based on the franchise in ExtraTERRORestrial Alien Encounter).
On April 3, 2019, Fox's Emma Watts announced on CinemaCon that Disney has plans to continue the Alien franchise along with Kingsman and Planet of the Apes.