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.
Clark: I dunno what the hell's in there, but it's weird and pissed off whatever it is.
Childs: You're gonna have to sleep sometime, MacCready. MacCready: I'm a real light sleeper, Childs.
MacReady: First goddamn week of winter.
MacReady: Trust is a tough thing to come by these days.
Trivia:
At the beginning of the film the Norwegian with the rifle screams in Norwegian: "Stop, get the hell away! It's not a dog - it's just an imitation of a dog, it's a kind of thing. It imitates. Get the hell away from the dog you fucking idiots!"
The Norwegian dog in the film was named Jed. He was a half wolf/half husky breed. Jed was very obedient, never barked and acted perfectly on cue for his scenes.
Donald Pleasence was the original choice for the character of Blair. Pleasence was unable to perform the role due to a scheduling conflict.
The film was originally banned when released in Finland.
In the close up shot of the United States National Science Institute Station 4 sign, a 'Smokey the Bear' sign can be seen.
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.