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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 26,876 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

40 Days and Nights (2012)HD
40 Days and Nights (2012)
River (2020)HD
River (2020)
No. 00173 (1960)HD
No. 00173 (1960)
Jane (2025)HD
Jane (2025)
Doctor Who: The Husbands of River Song (2015)1080P
Doctor Who: The Husbands of River Song (2015)
Genocidal Organ (2017)HD
Genocidal Organ (2017)
Runaway Brain (1995)HD
Runaway Brain (1995)
Meltdown: Days of Destruction (2006)HD
Meltdown: Days of Destruction (2006)
Plastic Little: The Adventures of Captain Tita (1994)HD
Plastic Little: The Adventures of Captain Tita (1994)
Cat Soup (2001)1080P
Cat Soup (2001)
Ultraman Decker Finale: Journey to Beyond (2023)HD
Ultraman Decker Finale: Journey to Beyond (2023)
Sea Beast (2008)HD
Sea Beast (2008)
Trapped (2024)HD
Trapped (2024)
Cyberkill (2020)HD
Cyberkill (2020)
The Seed of Man (1969)HD
The Seed of Man (1969)
Dracula vs. Frankenstein (1971)HD
Dracula vs. Frankenstein (1971)
Green BankHD
Green Bank
Red Days (2019)HD
Red Days (2019)
Woman in the Moon (1929)1080P
Woman in the Moon (1929)
R12 (2024)HD
R12 (2024)
1…255256257…500›
123Movies

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