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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 26,805 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

An (2024)HD
An (2024)
Guardian (2001)HD
Guardian (2001)
The Dark Kingdom (2018)HD
The Dark Kingdom (2018)
Meteor (1979)HD
Meteor (1979)
Alien Love Story (2026)HD
Alien Love Story (2026)
Kalite Kontrol (2025)1080P
Kalite Kontrol (2025)
The Astronomer (2024)1080P
The Astronomer (2024)
Interface (2023)HD
Interface (2023)
Brain 17 (1982)1080P
Brain 17 (1982)
The Time Travel Immigration Bureau (2026)HD
The Time Travel Immigration Bureau (2026)
The Clockwork Girl (2014)HD
The Clockwork Girl (2014)
Leonardo (2025)HD
Leonardo (2025)
The Land That Time Forgot (2025)HD
The Land That Time Forgot (2025)
Moon 44 (1990)HD
Moon 44 (1990)
Electroshock (2011)HD
Electroshock (2011)
Dead Space: Aftermath (2011)HD
Dead Space: Aftermath (2011)
1000 Kings (2019)HD
1000 Kings (2019)
GundamHD
Gundam
Forget All You Know (About Aliens) (2025)HD
Forget All You Know (About Aliens) (2025)
Z for Zachariah (2015)HD
Z for Zachariah (2015)
1…172173174…500›
123Movies

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