Palmer: I was wonderin' when El Capitan was gonna get a chance to use his popgun.
MacReady: First goddamn week of winter.
MacReady: I know I'm human. And if you were all these things, then you'd just attack me right now, so some of you are still human. This thing doesn't want to show itself, it wants to hide inside an imitation. It'll fight if it has to, but it's vulnerable out in the open. If it takes us over, then it has no more enemies, nobody left to kill it. And then it's won.
[Norris' head grows legs and tries to walk away.] Palmer: You gotta be fucking kidding.
[Last line] MacReady: Why don't we just wait here for a while... see what happens.
In the close up shot of the United States National Science Institute Station 4 sign, a 'Smokey the Bear' sign can be seen.
Donald Pleasence was the original choice for the character of Blair. Pleasence was unable to perform the role due to a scheduling conflict.
For a scene where a character's arms are severed, a real-life double amputee stand-in was used wearing a mask in the likeness of the character. The audience focuses on the bloody stumps while the mask goes unnoticed.
The Norwegian camp scenes were actually the charred remains of the American site from the end of the film. Rather than go to the expense of building and burning down another camp, Carpenter re-used the destroyed American camp.
DVD Easter Eggs: (Hidden So You Don't See Anything You Don't Want To See)
Edition: Universal Collectors Edition
Region: 1
Description: Hidden Music Score
Go to the Bonus Materials from the main menu and there select the Terror Takes Shape documentary. Go to Language Selection and you will find an menu called Music Score. It's the entire music score for the film.