2001: A Space Odyssey is a 1968 epic science fiction film produced and directed by Stanley Kubrick, who co-wrote the screenplay with Arthur C. Clarke. Its plot was inspired by several short stories optioned from Clarke, primarily "The Sentinel" (1951) and "Encounter in the Dawn" (1953).[4] The film stars Keir Dullea, Gary Lockwood, William Sylvester, and Douglas Rain, and follows a voyage by astronauts, scientists, and the sentient supercomputer HAL 9000 to Jupiter to investigate an alien monolith.