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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 26,948 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

The Resurrection of Zachary Wheeler (1971)HD
The Resurrection of Zachary Wheeler (1971)
Hot Wheels AcceleRacers: Ignition (2005)1080P
Hot Wheels AcceleRacers: Ignition (2005)
Returner (2002)HD
Returner (2002)
Countdown (1967)HD
Countdown (1967)
The Element of Crime (1984)HD
The Element of Crime (1984)
Insurrección (2024)HD
Insurrección (2024)
Time Walker (1982)HD
Time Walker (1982)
Synapse (2023)HD
Synapse (2023)
Flying Saucers Over Our Village (1977)HD
Flying Saucers Over Our Village (1977)
Alter Ego (2016)HD
Alter Ego (2016)
Trauma Industries (2017)HD
Trauma Industries (2017)
Alien Invasion : Rise of the Phoenix (2025)HD
Alien Invasion : Rise of the Phoenix (2025)
The Treasure Hunter (2009)HD
The Treasure Hunter (2009)
Doctor Who: A Christmas Carol (2010)1080P
Doctor Who: A Christmas Carol (2010)
Silent Night, Deadly Night 5: The Toy Maker (1991)HD
Silent Night, Deadly Night 5: The Toy Maker (1991)
Curse of the Fly (1965)HD
Curse of the Fly (1965)
Código Rosetta (2025)HD
Código Rosetta (2025)
New Alcatraz (2001)HD
New Alcatraz (2001)
Angst (2021)HD
Angst (2021)
Alpha Code (2020)HD
Alpha Code (2020)
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123Movies

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