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.

From Galaxy Quest to Minority Report, Tubi has science fiction movies of every flavor — and they're all free to stream.

"Predator: Badlands," the highest-grossing film in the franchise, is now streaming after its November theatrical release.

Don't miss your chance to watch the critically acclaimed Arrival, directed by Denis Villeneuve, for free on Tubi before it ...

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 ...

Sometimes a movie claws its way into the top ten of the FlixPatrol Streaming list, and all you can ask yourself is “why?” and ...

Andrei Tarkovsky's 1972 Soviet sci-fi film Solaris is considered one of the greatest movies ever made and it's steaming for ...

Kurt Russell makes almost any movie good, but he's also the star of a sci-fi classic that spawned a terrific franchise. It's ...

Stephen King adaptations, four of which landed in theaters. Now, one of those films has found a streaming home — and it’s an ...

Netflix has a rotating carousel of stellar sci-fi film offerings, so it can be hard to figure out where to start. Right now, the streamer is flexing its genre library with options like the “Back to ...

The most polarizing sci-fi movie of 2025, Yorgos Lanthimos' Bugonia, is towering over competition on streaming after a ...