Chris Howard asks what’s your favorite SF movie scene? Well, this is a huge spoiler, but the first thing that comes to my mind is the sudden impalement of a beloved character near the end of “Serenity”. It’s the classic, shocker, anything-can-happen-after-this moment.
The next that comes to mind is from “Dark Star”: “It’s time to feed the alien” and the space ship putting on the brakes.
And if you’re willing to count Dr. Strangelove, what else can I say, but “Yee-ha!”
None of these are really scenes, though, just moments.