Looking to stream some sci-fi? Here are three great science fiction movies you can watch for free on Tubi, all of which come highly recommended by critics.

The sixties were a turning point in American culture and in science fiction. For sci-fi movie lovers, it's now remembered … ...

Like Ray Bradbury’s novel, the Fahrenheit 451 movie is all about a totalitarian regime’s censorship of knowledge by burning ...

One of the most critically-acclaimed sci-fi movies ever is a decade old in 2026, but time is running out to watch it for free ...

The sci-fi genre has branched out in the last few decades to encompass a wide range of different styles. Many of the most important sci-fi movies were released in the 1960s and 1970s, including 2001: ...