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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 26,831 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Mister X (1961)HD
Mister X (1961)
Beyond the Stars (1989)HD
Beyond the Stars (1989)
Slipstream (2005)HD
Slipstream (2005)
Sucker (2023)1080P
Sucker (2023)
The Origin of Stitch (2005)HD
The Origin of Stitch (2005)
The Treasure Hunter (2009)HD
The Treasure Hunter (2009)
Actual Reality (2015)HD
Actual Reality (2015)
Doctor Who: Leela vs. The Time War (2024)HD
Doctor Who: Leela vs. The Time War (2024)
Phenomena (2026)HD
Phenomena (2026)
Hello Down There (1969)HD
Hello Down There (1969)
The Humanoid (1979)HD
The Humanoid (1979)
Polar Storm (2009)HD
Polar Storm (2009)
End of the World (1977)HD
End of the World (1977)
MeeBOX (2008)HD
MeeBOX (2008)
The Phantom Planet (1961)HD
The Phantom Planet (1961)
Remote (2026)HD
Remote (2026)
Andover and the Android (1965)HD
Andover and the Android (1965)
Deep Space (1988)HD
Deep Space (1988)
The RiderHD
The Rider
Wellspring (1991)HD
Wellspring (1991)
1…390391392…500›
123Movies

123Movies — watch movies online for free and discover the latest movies and TV series without registration.

Disclaimer: This site does not store any files on its server. All contents are provided by non-affiliated third parties.

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