2001: A Space Odyssey - UK (1968), directed by
Stanley Kubrick from the story by Arthur C. Clarke.
Mankind finds a mysterious, obviously artificial, artifact buried on the moon and, with the intelligent computer HAL, sets off on a quest.
with Keir Dullea as 'Dave', Gary Lockwood as 'Frank', and
William Sylvester as 'Dr. Heywood R. Floyd'.