These are the 20 best sci-fi movies on Netflix, ranked by their Rotten Tomatoes scores.

Science fiction, as a genre, has always achieved the impossible. It has not only pushed creative boundaries by imagining the future of science and technology but also built expansive fictional ...

A great sci-fi movie creates its own version of reality, even as the world in which its story is set also comments on the realities of our world. Each movie on this list features a carefully ...

And while PG-13 genre fare tends to sell more tickets, movie fans also turn out for titles rated "R." (See the "Alien" and "Terminator" franchises.) As Ryan Reynolds gets his body swap on in the ...