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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 26,783 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Altered Reality (2024)HD
Altered Reality (2024)
The Milpitas Monster (1976)HD
The Milpitas Monster (1976)
Vampire Vixens from Venus (1995)HD
Vampire Vixens from Venus (1995)
Gray Matter (2023)HD
Gray Matter (2023)
GoodbyeHD
Goodbye
Greed (1985)HD
Greed (1985)
Moonlighting (2009)HD
Moonlighting (2009)
The Three Stooges in Orbit (1962)HD
The Three Stooges in Orbit (1962)
Spirit of Wonder: Miss China's Ring (1992)HD
Spirit of Wonder: Miss China's Ring (1992)
The Satellite Girl and Milk Cow (2014)1080P
The Satellite Girl and Milk Cow (2014)
The Penultimate (1981)HD
The Penultimate (1981)
Starbirds (1982)HD
Starbirds (1982)
Gut Instinct (2024)1080P
Gut Instinct (2024)
Infinite Blue (2022)HD
Infinite Blue (2022)
Gears (2012)1080P
Gears (2012)
Star Suburb: The Suburb of the Stars (1983)HD
Star Suburb: The Suburb of the Stars (1983)
Echoes In Time (2026)HD
Echoes In Time (2026)
EchoHD
Echo
Detonator Orgun (1991)HD
Detonator Orgun (1991)
To Make Sure? (2007)HD
To Make Sure? (2007)
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123Movies

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