Alien is a 1979 science fiction horror film directed by Ridley Scott and written by Dan O’Bannon. Based on a story by O’Bannon and Ronald Shusett, it follows the crew of the commercial space tug Nostromo, who encounter the eponymous Alien, an aggressive and deadly extraterrestrial set loose on the ship.

Is Alien horror or sci-fi?

Alien (1979) Two short years after Star Wars amazed audiences, 20th Century Fox and director Ridley Scott terrified them with Alien — another groundbreaking science fiction classic.

Is Alien a thriller or horror?

Alien is a horror movie. It’s also a science-fiction movie set on a spaceship. And a monster movie, which is a subspecies of horror.