From Alien and Aliens to The Matrix and Blade Runner, these sci-fi movies released over the last half a century are true masterpieces of the genre.
From the monster mayhem of Cloverfield to the harrowing trauma of The Invisible Man, these great sci-fi movies offer incredibly intense experiences.
A cult sci-fi movie can go places a blockbuster wouldn't dare, on budgets a blockbuster would fear. These 10 films are smash ...
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