2001: A Space Oyssey is a science-fiction story, produced in 1968 as both a film (directed by Stanley Kubrick) and a novel (written by Arthur C. Clarke). Both projects are based on a screenplay developed by Clarke and Kubrick in collaboration, which was loosely based on Clarke's 1950 short story "The Sentinel" and incorporated elements from various other Clarke stories. Although the film has become more famous due to its groundbreaking visual effects and ambiguous, abstract nature, the movie and book were intended to complement each other.