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Watch Science Fiction Movies for Free in 123Movies
Welcome to 123Movies. Watch Science Fiction movies for free in 123movies with official verified HD previews for the most popular and critically acclaimed Science Fiction titles of all time. Futuristic technology, space exploration, time paradoxes, and alien encounters. Explore our curated catalog below with instant streaming.
All Science Fiction Trailers
HD
7.9
Official Trailer
Guardians of the Galaxy
Movie2014
HD
6.7
Official Trailer
Oblivion
Movie2013
HD
7.6
Official Trailer
Godzilla Minus One
Movie2023
HD
6.4
Official Trailer
Godzilla
Movie2014
HD
5.8
Official Trailer
Fantastic Four
Movie2005
HD
7.6
Official Trailer
Twelve Monkeys
Movie1995
HD
7.5
Official Trailer
Godzilla vs. Kong
Movie2021
HD
5.1
Official Trailer
Master of the Universe
Movie2026
HD
7.5
Official Trailer
E.T. the Extra-Terrestrial
Movie1982
HD
6.1
Official Trailer
Terminator Salvation
Movie2009
HD
7.4
Official Trailer
A Quiet Place Part II
Movie2021
HD
6.8
Official Trailer
The Book of Eli
Movie2010
HD
8.0
Official Trailer
The Iron Giant
Movie1999
HD
6.0
Official Trailer
Total Recall
Movie2012
HD
6.2
Official Trailer
Alien Resurrection
Movie1997
HD
5.9
Official Trailer
Teenage Mutant Ninja Turtles
Movie2014
HD
7.3
Official Trailer
Bugonia
Movie2025
HD
6.6
Official Trailer
Space Jam: A New Legacy
Movie2021
HD
6.2
Official Trailer
Terminator 3: Rise of the Machines
Movie2003
HD
4.4
Official Trailer
Fantastic Four
Movie2015