Sigourney Weaver signed on because the film was a “love letter” to the genre
Weaver: It’s funny, considering my background, but I was never into science fiction. I liked “The Twilight Zone,” that’s as close as I ever got. I thought “Flash Gordon” was stupid. I think “Star Trek” happened and I missed it. I was in the theater, and then suddenly I did “Alien.” Suddenly I was straddling two very different worlds. I’ll watch “Star Trek” once in a while – look at those cheap sets! But I also love to watch it as a “Gwen,” watching actors giving dignity to an absurd situation, speaking Klingon. But every time I see “Star Trek,” I just see a lot of people dressed as shepherds. They’re always medieval or something.
I can’t get by it. Whenever I flip past, that’s the episode I see – a bunch of shepherds. It’s the reason I never wanted “Alien” to go to Earth! You’d see the culture – a bunch of shepherds, ugh! The closest you get to Earth is in “Aliens” at the beginning, on the space station. And poor Burke, Paul Reiser, he’s wearing that absurd collar. It just says FUTURE and it doesn’t work. In “Avatar,” it’s all military and on the ship, so it avoided all that. But I just felt “Galaxy Quest,” as a comedy, was such a love letter to all the insecure actors in the field who have done so many wonderful and somewhat under-appreciated projects, and even though “Star Trek” is very popular, it was very…specific.