In one of my favorite science-fiction/action movies ever in Terminator 2, liquid nitrogen played a positively shattering role in what turned out to be the penultimate scene before the finale. The film's antagonist, the experimental T-1000 shape-shifting, liquid-metal Terminator (played menacingly by Robert Patrick), unrelenting in his pursuit to kill the movie's young hero John Connor (Edward Furlong), gets a tanker truck's worth (a postively frozen -320.44°F degrees worth, that is) of this unique substance, which figuratively paralyzes it from moving farther.
The older Terminator model reprogrammed and sent back to protect Connor, played by Arnold Schwarzenegger, takes aim at his now frozen-in-place nemesis with his gun and utters perhaps the most famous line in the movie, "Hasta la vista, baby." One big kablam! later, the T-1000 blows apart into hundreds of little pieces.
