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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 26,778 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Alien (1979)1080P
Alien (1979)
The Hunger Games: Mockingjay - Part 1 (2014)HD
The Hunger Games: Mockingjay - Part 1 (2014)
2001: A Space Odyssey (1968)1080P
2001: A Space Odyssey (1968)
Iron Man 3 (2013)HD
Iron Man 3 (2013)
Guardians of the Galaxy Vol. 2 (2017)1080P
Guardians of the Galaxy Vol. 2 (2017)
Good Luck, Have Fun, Don't Die (2026)1080P
Good Luck, Have Fun, Don't Die (2026)
Logan (2017)1080P
Logan (2017)
Iron Man 2 (2010)HD
Iron Man 2 (2010)
Thor: Ragnarok (2017)1080P
Thor: Ragnarok (2017)
Alien: Covenant (2017)HD
Alien: Covenant (2017)
Terminator 2: Judgment Day (1991)1080P
Terminator 2: Judgment Day (1991)
The Long Walk (2025)HD
The Long Walk (2025)
Furiosa: A Mad Max Saga (2024)1080P
Furiosa: A Mad Max Saga (2024)
Everything Everywhere All at Once (2022)1080P
Everything Everywhere All at Once (2022)
The Fifth Element (1997)1080P
The Fifth Element (1997)
Alien: Romulus (2024)1080P
Alien: Romulus (2024)
Meg 2: The Trench (2023)HD
Meg 2: The Trench (2023)
Despicable Me 2 (2013)HD
Despicable Me 2 (2013)
Dune: Part Three (2026)HD
Dune: Part Three (2026)
The End of Oak Street (2026)HD
The End of Oak Street (2026)
1…456…500›
123Movies

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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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