24k voters

The Greatest Sci-Fi Movies Of All Time

Updated October 7, 2020 489k votes 24k voters 464.6k views503 items

List RulesWhich science fiction films are the best? Vote up your favorites and add any that aren't already on the list.

What are the greatest sci-fi movies of all time? These good science fiction films are among the most popular movies in cinematic history, with films like Star Wars and Aliens keeping audiences on the edge of their collective seats for decades. This list includes these classics, and many more, so get ready to vote for your favorite sci-fi movies of all time.

Want to see more of the best Sci-Fi? Here are the Best Sci-Fi TV Shows of All Time

Great sci-fi films include stories of extraterrestrial life, time travel, space travel, robots and more. Some of these amazing science fiction movies are more fantasy-oriented, while others are a bit closer to reality. Either way, sci-fi films keep audiences rapt with tales of science and technology, combined, at times with the supernatural.

Some sci-fi films are based on classic novels or short stories by such heavyweight authors as H.G. Wells (War of the WorldsThe Invisible Man) or Philip K. Dick (Blade RunnerMinority Report).

What are the best sci-fi movies of all time? This list of the best sci-fi films is also crowd ranked, meaning you can rerank your own greatest sci-fi movies. Your reranks can change the overall order of the films on the list! Also, if you love sci-fi, check out this list of the best new sci-fi shows of the last few years.