10. Lance Henriksen caught a dose of food poisoning from the milk and yogurt combination that he had to spew up when his chest was pierced by the alien queen’s tail. Having this lactose combination sitting around under hot studio lights created a bacterial breeding ground.
9. The colony on LV-426 is named Hadley’s Hope, with a population of 158. This is revealed in the special edition, and if you look carefully, the saying “Have A Nice Day” is painted on the sign.
8. Hudson says the word “man” a total of 35 times and improvised much of his lines including “Game over, man! Game over!”
7. In the shooting script, the synthetic Ash from the previous movie was referred to as a ‘Cyberdyne Systems 120-A/2’, an obvious nod to the Cyberdyne Systems 101 Terminator from The Terminator, James Cameron’s previous movie. It was changed in the movie to a Hyperdine System 120-A2.
6. A complicated effect shot had already been filmed just before James Remar was replaced by Michael Biehn. A re-shoot would be too expensive, so the Corporal Hicks seen with his back towards camera is still played by James Remar.
5. According to the shooting script, Vasquez and Drake spent a tough childhood together in a Hispanic slum, and were drafted into the Colonial Marines from juvenile prison
4. Four actors from this movie appear in various Terminator movies: Michael Biehn, Lance Henriksen and Bill Paxton in The Terminator, and Jenette Goldstein in Terminator 2: Judgment Day.
3. The alien screams are baboon shrieks altered in post-production
2. The knife trick scene was not in the original shooting script. According to Lance Henriksen, the adding of Hudson’s hand to the knife trick was discussed with almost everyone, except Bill Paxton
1. The Alien nest set was kept intact after filming. It was later used as the Axis Chemicals set for Tim Burton’s Batman