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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.

Man with the Screaming Brain (2005)HD
Man with the Screaming Brain (2005)
Steak (2007)HD
Steak (2007)
Gundam Reconguista in G Movie I: Go! Core Fighter (2019)HD
Gundam Reconguista in G Movie I: Go! Core Fighter (2019)
A Closed Book (2012)HD
A Closed Book (2012)
Time Demon (1996)HD
Time Demon (1996)
Consensus Reality (2018)HD
Consensus Reality (2018)
Nothing we can do (2025)1080P
Nothing we can do (2025)
In Memory (2015)HD
In Memory (2015)
Random Quest (1969)HD
Random Quest (1969)
Hello Down There (1969)HD
Hello Down There (1969)
Broken Victory (1987)HD
Broken Victory (1987)
Meltdown: Days of Destruction (2006)HD
Meltdown: Days of Destruction (2006)
Behind the Planet of the Apes (1998)1080P
Behind the Planet of the Apes (1998)
Ultraman vs. Kamen Rider (1993)1080P
Ultraman vs. Kamen Rider (1993)
The Catalyst (2026)HD
The Catalyst (2026)
RememberHD
Remember
WET MOUTH (2021)HD
WET MOUTH (2021)
Santa Claus Conquers the Martians (1964)HD
Santa Claus Conquers the Martians (1964)
Countdown: Armageddon (2009)HD
Countdown: Armageddon (2009)
Into Pitch Black (2000)HD
Into Pitch Black (2000)
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123Movies

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