Science Fiction Science fiction, often called “sci -fi,” is a genre of fiction literature whose content is imaginative, but based in science . It relies heavily on scientific facts, theories, and principles as support for its settings, characters, themes, and plot-lines, which is what makes it different from fantasy. Some examples of sci-fi movies are Bladerunner , The Martian and Avatar. Some sub genres of science fiction are: *Alien Invasion - Independence Day *Cyberpunk - Bladerunner *Dying Earth - Take Shelter *First Contact - Star Trek *Galactic Empire - Star Wars *Human Development - Shutter Island There are many other sub genres that make up science fiction.