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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 26,963 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Hot Tub Time Machine (2010)HD
Hot Tub Time Machine (2010)
The Platform 2 (2024)HD
The Platform 2 (2024)
*batteries not included (1987)HD
*batteries not included (1987)
The Girl Who Leapt Through Time (2006)1080P
The Girl Who Leapt Through Time (2006)
The Tunnel to Summer, the Exit of Goodbyes (2022)1080P
The Tunnel to Summer, the Exit of Goodbyes (2022)
Totally Killer (2023)HD
Totally Killer (2023)
The Postman (1997)HD
The Postman (1997)
Spy Kids 2: The Island of Lost Dreams (2002)HD
Spy Kids 2: The Island of Lost Dreams (2002)
Splice (2010)HD
Splice (2010)
Chain Reaction (1996)HD
Chain Reaction (1996)
WarGames (1983)1080P
WarGames (1983)
The Host (2006)HD
The Host (2006)
Push (2009)HD
Push (2009)
Extinction (2015)HD
Extinction (2015)
Tremors 2: Aftershocks (1996)HD
Tremors 2: Aftershocks (1996)
I Origins (2014)1080P
I Origins (2014)
K-PAX (2001)1080P
K-PAX (2001)
Phineas and Ferb the Movie: Candace Against the Universe (2020)1080P
Phineas and Ferb the Movie: Candace Against the Universe (2020)
The Giver (2014)HD
The Giver (2014)
Daybreakers (2010)HD
Daybreakers (2010)
1…282930…500›
123Movies

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