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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 26,761 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

The Capricious Robot (2007)HD
The Capricious Robot (2007)
Beginning of the End (1957)HD
Beginning of the End (1957)
0% (2021)HD
0% (2021)
Scurry (2025)HD
Scurry (2025)
Lolo (2019)HD
Lolo (2019)
UFO Abduction (1989)HD
UFO Abduction (1989)
Eidolon (2025)HD
Eidolon (2025)
The 2400 (2025)HD
The 2400 (2025)
Glomer (2022)HD
Glomer (2022)
The Attack of the Robots from Nebula-5 (2008)HD
The Attack of the Robots from Nebula-5 (2008)
The H-Man (1958)HD
The H-Man (1958)
Visitors of the Unknown (2026)HD
Visitors of the Unknown (2026)
Dual (2025)HD
Dual (2025)
HABITAT (2021)HD
HABITAT (2021)
1000 km per minute! (1939)1080P
1000 km per minute! (1939)
Symbiotik (2025)HD
Symbiotik (2025)
Samsara (2024)HD
Samsara (2024)
Real Playing Game (2013)HD
Real Playing Game (2013)
George Lucas' Star Tours (1986)1080P
George Lucas' Star Tours (1986)
The Fix (2024)HD
The Fix (2024)
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123Movies

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