The Definitive Best Sci-Fi Movies of the 21st Century, As Voted by Fans

The 21st century has transformed science fiction, producing films that redefine the genre through ambitious ideas, groundbreaking technology, unforgettable worlds, and timely social commentary. From artificial intelligence and space exploration to dystopian societies, alien encounters, and the future of humanity, these movies reflect the hopes and anxieties of a rapidly changing world. The definitive science fiction movies of the 21st century represent the films that have made the greatest impact on the genre, whether through critical acclaim, cultural influence, popularity, innovation, or their ability to push science fiction in unexpected directions. Together, they reveal how filmmakers have continually expanded what modern science fiction can be.