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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 26,777 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Commander Toad in Space (1993)1080P
Commander Toad in Space (1993)
Vert (2020)1080P
Vert (2020)
Lensman (1984)HD
Lensman (1984)
A Time in Eternity (2026)HD
A Time in Eternity (2026)
Cities of Last Things (2018)HD
Cities of Last Things (2018)
Fate (2017)HD
Fate (2017)
It's Alive (2009)HD
It's Alive (2009)
One Minute in Hell (2023)1080P
One Minute in Hell (2023)
Alam: Kingdom of Plants (2022)HD
Alam: Kingdom of Plants (2022)
Women Calling (2026)HD
Women Calling (2026)
Hello Down There (1969)HD
Hello Down There (1969)
The Harbour (2005)HD
The Harbour (2005)
The Return (1980)HD
The Return (1980)
Do Not OpenHD
Do Not Open
Gamera vs. Jiger (1970)HD
Gamera vs. Jiger (1970)
Recoding Entropia (2020)HD
Recoding Entropia (2020)
Tropical Fractals (2026)HD
Tropical Fractals (2026)
Replay (2007)HD
Replay (2007)
The Coming Days (2010)HD
The Coming Days (2010)
Crazy Watto (2005)HD
Crazy Watto (2005)
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123Movies

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