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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 26,966 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

The Launching of Spaceship-1 (1940)HD
The Launching of Spaceship-1 (1940)
Syukur 21 (2000)1080P
Syukur 21 (2000)
Left-Handed Fate (1966)HD
Left-Handed Fate (1966)
Obsolescência Programada (2026)HD
Obsolescência Programada (2026)
X US (2022)HD
X US (2022)
The WriteristHD
The Writerist
ConsequentHD
Consequent
Battle of the Damned (2013)HD
Battle of the Damned (2013)
Cyborg 009 vs. Devilman (2015)HD
Cyborg 009 vs. Devilman (2015)
Human Lost (2019)HD
Human Lost (2019)
Control Zeta (2023)HD
Control Zeta (2023)
Creature with the Atom Brain (1955)HD
Creature with the Atom Brain (1955)
Iron Wolf (2014)HD
Iron Wolf (2014)
Fourth DoorHD
Fourth Door
Alien 2: On Earth (1980)HD
Alien 2: On Earth (1980)
Critters 4 (1992)HD
Critters 4 (1992)
Four (2026)HD
Four (2026)
Babylon 5: The Road Home (2023)1080P
Babylon 5: The Road Home (2023)
The Return of Doctor X (1939)HD
The Return of Doctor X (1939)
Transience (2026)HD
Transience (2026)
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123Movies

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