Dr. Dave Bowman (Keir Dullea) and other astronauts are sent on a mission to discover the origin of a mysterious monolith discovered beneath the Lunar surface. As the team heads toward Jupiter, their ship's computer system, HAL, begins to display increasingly strange behavior, leading to a tense showdown between man and machine that results in a mind-bending trek through space and time. Director Stanley Kubrick's adaptation of Arthur C. Clarke's best-selling book is a landmark production, perhaps the most respected science-fiction film of all time. The groundbreaking special effects and trippy visuals offer a mix of imagination and science, and the film itself serves as a profound commentary on man's relation to machines, the universe, and life itself.