16. The Day the Earth Stood Still (1951)

This movie was directed by Robert Wise and debuted on September 18, 1951. The film starred Patricia Neal and Michael Rennie. When Klaatu, the alien, first arrives on Earth, he brings a warning message. Through his message, he presents two essential points about peace and the nuclear war threats faced by humanity. This sci-fi classic built its foundations upon the special effects, diplomatic alien narrative, and human fear content featured in this cinematic creation.
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Edited by Zainab Shaikh