Looking for some great sci-fi movies that you can stream for free? We've got a great collection of classics and modern favorites to watch right now.

In this '90s sci-fi cult classic, a man missing his memories must grapple with an enemy that can shift reality and the truth behind a city swathed in shadows.

There are a lot of fictional inventions in movies and TV shows, mostly in the sci-fi genre, that have since become real things. Often, it's not exactly what we saw in the movie or television show, but ...

Browsing the mammoth selection of movies on Tubi has always been, and will presumably always be, a dizzying experience. None of the other, competing FAST (free ad-supported TV) streamers can seemingly ...

From modern masterpieces like Interstellar to timeless gems like Blade Runner, these sci-fi stunners present the very best of the genre since 1950.

Tank Girl was a flop when it was released, but this punk superhero film has become a classic, and now you can watch it for free.

There have been many excellent sci-fi films released over the last 100 years, and movies like Metropolis and Back to the Future are at the top.

Science fiction isn't just about explosions in space or aliens that look suspiciously human – it's about ideas. The best sci-fi films challenge how we think about time, technology, and ourselves, ...

Tubi's sci-fi slate got an amazing boost this month, with the arrival of the genre's best entry from the 2010s.

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Shutterstock; Tubi What if you could plan the perfect romantic getaway and then endlessly ...

In this month’s picks, the latest in the “28 Days Later” franchise, an aerial phenomenon, and a samurai lost in time. By Elisabeth Vincentelli Stream it on Netflix. Spike (Alfie Williams) is 12 and ...

Like many of you, no doubt, Ursula K. Le Guin is one of my favourite sci-fi writers. So I am really excited about a collection out this month that brings together the maps she would draw when starting ...