Aliens is a 1986 science fiction action film written and directed by James Cameron. It is the sequel to the 1979 science fiction horror film Alien, and the second film in the Alien franchise. Set in the far future, the film stars Sigourney Weaver as Lieutenant Ellen Ripley, the sole survivor of an alien attack on her ship. When communications are lost with a human colony on the moon on which her crew first encountered the alien creatures, Ripley agrees to return to the site with a troop of colonial marines to investigate. Aliens features Michael Biehn, Paul Reiser, Lance Henriksen, and Carrie Henn in supporting roles.
Aliens is now considered among the greatest films of the 1980s, and among the best science fiction, action, and sequel films ever made, often deemed equal to or better than Alien. It is credited with expanding the franchise's scope with additions to the series' backstory and factions such as the Colonial Marines. It inspired a variety of merchandise, including video games, comic books and toys. It was followed by two sequels: Alien 3 (1992) and Alien Resurrection (1997), a prequel film, Alien: Romulus (2024), a TV series, Alien: Earth (2025), and two spin-off crossover films; Alien vs. Predator (2004) and Alien vs. Predator: Requiem (2007).
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