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Science Fiction Movies & TV Shows Online Free

Stream the best Science Fiction movies and TV shows free on 123Movies in HD. Browse 26,838 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

The Secret of NIMH 2: Timmy to the Rescue (1999)HD
The Secret of NIMH 2: Timmy to the Rescue (1999)
Kolobakha (2008)1080P
Kolobakha (2008)
Mark of the Witch (2014)HD
Mark of the Witch (2014)
The First (2014)HD
The First (2014)
O Marciano de Chapéu (2024)HD
O Marciano de Chapéu (2024)
Alien Nation (1988)HD
Alien Nation (1988)
At the Earth's Core (1976)HD
At the Earth's Core (1976)
Aftermath (2016)HD
Aftermath (2016)
Ultra-Toxic (2005)1080P
Ultra-Toxic (2005)
Save Yourselves! (2020)HD
Save Yourselves! (2020)
About the Beginning (2023)HD
About the Beginning (2023)
Baby: Secret of the Lost Legend (1985)HD
Baby: Secret of the Lost Legend (1985)
The Dark Side of the Moon (1990)HD
The Dark Side of the Moon (1990)
Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royal! (2014)HD
Ultraman Ginga Theater Special: Ultra Monster ☆ Hero Battle Royal! (2014)
The Rocky Horror Picture Show: Let's Do the Time Warp Again (2016)HD
The Rocky Horror Picture Show: Let's Do the Time Warp Again (2016)
What Lies Below (2020)HD
What Lies Below (2020)
Futur antérieur (2016)HD
Futur antérieur (2016)
Dr. Strange (1978)HD
Dr. Strange (1978)
Redacted (2025)HD
Redacted (2025)
Mutant (2024)HD
Mutant (2024)
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123Movies

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Trailers shown here are official content embedded from YouTube. Watch the full titles on the rights-holders' official streaming platforms.© 2026 123Movies. All rights reserved.
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