At the end of Christian Nyby’s 1951 sci-fi chiller “The Thing from Another World” — about an Arctic expedition whose members are stealthily decimated by an accidentally defrosted alien monster — a traumatized journalist takes to the airwaves to deliver an urgent warning.“Watch the skies,” he insists breathlessly, hinting at the possibility of a full-on invasion in the final lines. “Keep looking. Keep watching the skies.”This plea for eagle-eyed vigilance suited the postwar era of Pax Americana, in which economic prosperity was leveraged against a creeping paranoia — of threats coming from above or within. The final lines of movie were prescient about the rise of the American science-fiction film, out of the B-movie trenches in the 1950s and into the firmament of the industry’s A-list several decades later.
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