Genre Hub
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
7.1
Official Trailer
Don't Look Up
Movie2021
HD
8.1
Official Trailer
The Thing
Movie1982
HD
6.4
Official Trailer
Terminator: Dark Fate
Movie2019
HD
5.5
Official Trailer
Jupiter Ascending
Movie2015
HD
7.9
Official Trailer
Akira
Movie1988
HD
6.8
Official Trailer
Venom
Movie2018
HD
6.9
Official Trailer
The Long Walk
Movie2025
HD
7.0
Official Trailer
Megamind
Movie2010
HD
7.7
Official Trailer
Captain America: The Winter Soldier
Movie2014
HD
6.7
Official Trailer
Godzilla: King of the Monsters
Movie2019
HD
7.3
Official Trailer
Minions: The Rise of Gru
Movie2022
HD
6.9
Official Trailer
Elio
Movie2025
HD
6.6
Official Trailer
Star Wars: Episode I - The Phantom Menace
Movie1999
HD
7.3
Official Trailer
Alita: Battle Angel
Movie2019
HD
6.5
Official Trailer
TRON: Ares
Movie2025
HD
7.6
Official Trailer
Prey
Movie2022
HD
7.1
Official Trailer
Good Luck, Have Fun, Don't Die
Movie2026
HD
6.5
Official Trailer
TRON: Legacy
Movie2010
HD
4.8
Official Trailer
Immortal Combat
Movie2026
HD
7.1
Official Trailer
Mercy
Movie2026