For over 40 years, the Xenomorph has terrorized audiences with seven films, two Alien vs. Predator crossover movies and a show, Alien: Earth. The prequel, which premiered on FX and Hulu on Aug. 12, 2025, marked the first time the story has been adapted for the small screen.

"Alien: Earth" is Noah Hawley's latest silver-to-small screen project. But if you want to watch all the film entries which preceded it, here's what you need to know.