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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 26,771 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Reptilicus (1961)HD
Reptilicus (1961)
RetrogradeHD
Retrograde
The Space Children (1958)HD
The Space Children (1958)
Ultra Nyan: Extraordinary Cat who Descended from the Starry Sky (1997)1080P
Ultra Nyan: Extraordinary Cat who Descended from the Starry Sky (1997)
Tell Me What You See (2022)HD
Tell Me What You See (2022)
Unification (2023)HD
Unification (2023)
Through the Fifth Dimension (1973)HD
Through the Fifth Dimension (1973)
Desert Sky (1997)HD
Desert Sky (1997)
Despite the Night (2026)HD
Despite the Night (2026)
Alien in the Heartland (2026)1080P
Alien in the Heartland (2026)
B-Plot (2025)HD
B-Plot (2025)
How to Solve Your Own Murder (2024)HD
How to Solve Your Own Murder (2024)
Redemption (2020)HD
Redemption (2020)
algorithm (2026)HD
algorithm (2026)
My Weird School (2025)1080P
My Weird School (2025)
And Away (2022)HD
And Away (2022)
Neurogenesis (2021)1080P
Neurogenesis (2021)
Murphy (2024)1080P
Murphy (2024)
A Summer Day's Dream (1994)HD
A Summer Day's Dream (1994)
Battle of Memories (2017)HD
Battle of Memories (2017)
1…462463464…500›
123Movies

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