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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 26,750 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Successful Thawing of Mr Moro (2021)HD
Successful Thawing of Mr Moro (2021)
Street Hawk: The Movie (1984)HD
Street Hawk: The Movie (1984)
Returner (2002)HD
Returner (2002)
Iota Period Omega (2022)HD
Iota Period Omega (2022)
Hijos Compartidos (2025)HD
Hijos Compartidos (2025)
Collection Capsule (2021)HD
Collection Capsule (2021)
Home Run (2023)HD
Home Run (2023)
Aliens from Uranus (2012)HD
Aliens from Uranus (2012)
Jumborg Ace and Giant (2001 Special Edition) (2001)HD
Jumborg Ace and Giant (2001 Special Edition) (2001)
Beyond the Ranch (2023)HD
Beyond the Ranch (2023)
Mysterious Behaviors (2024)HD
Mysterious Behaviors (2024)
Triangle (2020)HD
Triangle (2020)
Class of 1999 II: The Substitute (1994)HD
Class of 1999 II: The Substitute (1994)
The Corsair CodeHD
The Corsair Code
Hell DiversHD
Hell Divers
INTERLOPERS (2024)HD
INTERLOPERS (2024)
Aria the OVA: Arietta (2007)HD
Aria the OVA: Arietta (2007)
Cracking Up (1977)HD
Cracking Up (1977)
Beneath the Green (2023)HD
Beneath the Green (2023)
Amy (2023)HD
Amy (2023)
1…493494495…500›
123Movies

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