Science fiction is a genre of speculative fiction that involves the envisioned impacts of an actual or imagined scientific event occurring among society or individuals. The sci-fi genre incorporates concepts of innovative, futuristic science, technology, space observation, time travel, parallel universes, extraterrestrials, sentient artificial intelligence, cybernetics, immortality and the singularity. Sci-fi explores the potential consequences of scientific, social, and technological innovations and evokes wonder while providing entertainment and may criticize current society and explore alternatives.
Here are the most rewatchable sci-fi movies of all time according to MovieWeb.