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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 26,827 Science Fiction titles — no signup, no subscription required. Updated daily with the newest Science Fiction releases.

Evil Alien Conquerors (2003)HD
Evil Alien Conquerors (2003)
Dark LightHD
Dark Light
Alien Battlefield (2013)HD
Alien Battlefield (2013)
Street Fighter Alpha: The Movie (1999)HD
Street Fighter Alpha: The Movie (1999)
Re-Kill (2015)HD
Re-Kill (2015)
Sonido: Ivans & Tobis (2023)HD
Sonido: Ivans & Tobis (2023)
1000 Kings (2019)HD
1000 Kings (2019)
Stacey & Sly (2025)HD
Stacey & Sly (2025)
See You Yesterday (2019)HD
See You Yesterday (2019)
The Second Arrival (1998)HD
The Second Arrival (1998)
First Signal (2021)HD
First Signal (2021)
Paradise FoundHD
Paradise Found
Keshka and the Humanoid (1993)HD
Keshka and the Humanoid (1993)
Shoot Your Shot (2021)HD
Shoot Your Shot (2021)
On/Off (2020)HD
On/Off (2020)
Sea Beast (2008)HD
Sea Beast (2008)
Thunderbirds: The Mighty Atom (1965)HD
Thunderbirds: The Mighty Atom (1965)
The Sadness of Androids (2011)HD
The Sadness of Androids (2011)
The Five People You Meet In Heaven (2004)HD
The Five People You Meet In Heaven (2004)
The Lightning Code (2025)HD
The Lightning Code (2025)
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123Movies

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