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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 26,737 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Mystery Science Theater 3000: The Movie (1996)HD
Mystery Science Theater 3000: The Movie (1996)
Passage to Mars (2016)HD
Passage to Mars (2016)
The Capitol Conspiracy (1998)HD
The Capitol Conspiracy (1998)
Résistance (2019)HD
Résistance (2019)
The Strange Bedfellow (1986)1080P
The Strange Bedfellow (1986)
When Time Expires (1997)HD
When Time Expires (1997)
Almost Human (2014)HD
Almost Human (2014)
Off on a Comet (1976)HD
Off on a Comet (1976)
Meant To Be (2010)HD
Meant To Be (2010)
Timemaster (1995)HD
Timemaster (1995)
Space Jellyfish (2021)HD
Space Jellyfish (2021)
I Promise We’re CoolHD
I Promise We’re Cool
Gears (2012)1080P
Gears (2012)
Trash Buddies (2024)HD
Trash Buddies (2024)
Class of Nuke 'Em High 2: Subhumanoid Meltdown (1991)HD
Class of Nuke 'Em High 2: Subhumanoid Meltdown (1991)
Kamen Rider Gaim: Final Stage (2015)HD
Kamen Rider Gaim: Final Stage (2015)
Split (1989)HD
Split (1989)
The Secret of the Telegian (1960)HD
The Secret of the Telegian (1960)
Eternal Sunday (2022)1080P
Eternal Sunday (2022)
Into Sound (2026)HD
Into Sound (2026)
1…499500
123Movies

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