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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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Science Fiction Movies & TV Shows Online Free

Stream the best Science Fiction movies and TV shows free on 123Movies in HD. Browse 26,795 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Killdozer (1974)HD
Killdozer (1974)
The Broken Key (2017)HD
The Broken Key (2017)
Pettonton Special (1984)HD
Pettonton Special (1984)
The Smog (2022)HD
The Smog (2022)
Moontrap: Target Earth (2017)HD
Moontrap: Target Earth (2017)
The Brother from Space (1988)HD
The Brother from Space (1988)
Family Planning (1967)HD
Family Planning (1967)
PrudenceHD
Prudence
Kalashtar (2022)HD
Kalashtar (2022)
Heatseeker (1995)HD
Heatseeker (1995)
Conspiracy Cases (2023)HD
Conspiracy Cases (2023)
The Man Who Saved the World (1982)HD
The Man Who Saved the World (1982)
Beneath the Veil (2024)HD
Beneath the Veil (2024)
The Astral Woods (2023)HD
The Astral Woods (2023)
Hunting SeasonHD
Hunting Season
Bad Girl Island (2007)HD
Bad Girl Island (2007)
SSSS.DYNAZENON Grand Episode (2023)HD
SSSS.DYNAZENON Grand Episode (2023)
Aerials (2016)HD
Aerials (2016)
Space Travelers: The Animation (2000)HD
Space Travelers: The Animation (2000)
Fissures (2007)HD
Fissures (2007)
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123Movies

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