Watch Free Sci-Fi Movies Online

Stream full-length sci-fi movies free on StreamEx. Every title plays in HD right in your browser — no sign-up, no subscription, no download.

Watch Mesa of Lost Women freeFREE▶Mesa of Lost Women1953 · Sci-FiWatch Phantom From Space freeFREE▶Phantom From Space1953 · Sci-FiWatch Unknown World freeFREE▶Unknown World1951 · ActionWatch Things to Come freeFREE▶Things to Come1936 · DramaWatch Destroy All Planets freeFREE▶Destroy All Planets1968 · Sci-FiWatch Transatlantic Tunnel freeFREE▶Transatlantic Tunnel1935 · DramaWatch Attack From Space freeFREE▶Attack From Space1959 · Sci-FiWatch Attack of the Giant Leeches freeFREE▶Attack of the Giant Leeches1959 · HorrorWatch Assignment Outer Space freeFREE▶Assignment Outer Space1960 · Sci-FiWatch The Phantom Creeps freeFREE▶The Phantom Creeps1939 · Sci-FiWatch End of the World freeFREE▶End of the World1977 · MysteryWatch The Phantom Planet freeFREE▶The Phantom Planet1961 · MysteryWatch First Spaceship on Venus freeFREE▶First Spaceship on Venus1960 · Sci-FiWatch Teenagers from Outer Space freeFREE▶Teenagers from Outer Space1959 · HorrorWatch Planet Outlaws freeFREE▶Planet Outlaws1953 · Sci-FiWatch Voyage to the Planet of Prehistoric Women freeFREE▶Voyage to the Planet of Prehistoric Women1967 · Sci-FiWatch Killers From Space freeFREE▶Killers From Space1954 · HorrorWatch Cosmos: War of the Planets freeFREE▶Cosmos: War of the Planets1977 · Sci-Fi