Best Free Science Fiction Movies
Top-rated science fiction movies you can stream for free — no subscription needed.
Free science fiction movies without another subscription
Use this page when you want a science fiction movie you can start without paying for another streaming plan. We check Tubi, Pluto TV, Kanopy and surface the strongest free-with-ads or library-supported options by platform.
There are 60 ranked free science fiction placements across these platforms. Start with the Tubi picks below, or jump to another free platform if you already know where you want to watch.
Top picks on Tubi
Invasion of the Body Snatchers(1978)
The residents of San Francisco are becoming drone-like shadows of their former selves, and as the phenomenon spreads, two Department of Health workers uncover the horrifying truth.
The Secret of NIMH(1982)
A widowed field mouse must move her family -- including an ailing son -- to escape a farmer's plow. Aided by a crow and a pack of superintelligent, escaped lab rats, the brave mother struggles to tran
Source Code(2011)
When decorated soldier Captain Colter Stevens wakes up in the body of an unknown man, he discovers he's part of a mission to find the bomber of a Chicago commuter train.
Threads(1984)
Documentary style account of a nuclear holocaust and its effect on the working class city of Sheffield, England; and the eventual long run effects of nuclear war on civilization.
The Wandering Earth II(2023)
Humans built huge engines on the surface of the earth to find a new home. But the road to the universe is perilous. In order to save earth, young people once again have to step forward to start a race
The Man from Earth(2007)
A departing professor gathers his closest colleagues for an intimate farewell, but the night takes an unexpected turn when he shares a stunning secret about his past. As the conversation unfolds, skep
The Man from the Future(2011)
Zero is a brilliant scientist. However, 20 years ago, he was publicly humiliated when he lost Helena, the love of his life. One day, an accidental experience with one of his inventions causes him to t
Night of the Living Dead(1968)
A ragtag group barricade themselves in an old Pennsylvania farmhouse to remain safe from a horde of flesh-eating ghouls ravaging the Northeast.
They Call Me Jeeg(2016)
Exposed to radioactive waste, small-time crook Enzo gains super-strength. A misanthropic, introverted brute, he uses his powers for personal gain until he meets Alessia, a mentally ill girl who believ
Status Update(2018)
After being uprooted by his parents' separation and unable to fit into his new hometown, a teenager stumbles upon a magical app that causes his social media updates to come true.
Coherence(2014)
Four couples gather for dinner the night a mysterious and powerful comet passes overhead.
Ghost in the Shell(1995)
In the year 2029, the barriers of our world have been broken down by the net and by cybernetics, but this brings new vulnerability to humans in the form of brain-hacking. When a highly-wanted hacker k
Redline(2009)
A daredevil driver is determined to compete in Redline, the most popular race in the galaxy. The race only occurs every five years, but in order to participate he must overcome the mafia, the governme
Ghost in the Shell 2.0(2008)
In the year 2029, Section 9, a group of cybernetically enhanced cops, are called in to investigate and stop a highly-wanted hacker known as 'The Puppetmaster'.
Metropolis(1927)
In a futuristic city sharply divided between the rich and the poor, the son of the city's mastermind meets a prophet who predicts the coming of a savior to mediate their differences.
Frequency(2000)
When a rare phenomenon gives police officer John Sullivan the chance to speak to his father, 30 years in the past, he takes the opportunity to prevent his dad's tragic death. After his actions inadve
Seobok(2021)
Ex intelligence agent Ki-heon is tasked with safely transporting Seo Bok, the first ever human clone, who holds the secret of eternal life. Several forces try to take control of Seo Bok to serve their
Dark City(1998)
A man struggles with memories of his past, including a wife he cannot remember, in a nightmarish world with no sun and run by beings with telekinetic powers who seek the souls of humans.
Open Your Eyes(1997)
Handsome 25-year-old Cesar had it all -- a successful career, expensive cars, a swank bachelor's pad, and an endless string of beautiful and willing women -- until he is thrown into a strange psycholo
Forbidden Planet(1956)
Starship C57D travels to planet Altair 4 in search of the crew of spaceship "Bellerophon," a scientific expedition that has been missing for twenty years. They find themselves unwelcome by the expedit
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