Humanity finds a mysterious object buried beneath the lunar surface and sets off to find its origins with the help of HAL 9000, the world's most advanced super computer.
Keir Dullea, Gary Lockwood, William Sylvester, Douglas Rain, Daniel Richter, Leonard Rossiter, Margaret Tyzack, Robert Beatty, Sean Sullivan, Frank Miller, Ed Bishop, Edwina Carroll, Heather Downham, Penny Brahms, Maggie d'Abo, Chela Matthison, Judy Kiern, Alan Gifford, Ann Gillis, Vivian Kubrick, Kenneth Kendall, Kevin Scott, Martin Amor, Bill Weston, Glenn Beck, Mike Lovell, John Ashley, Jimmy Bell, David Charkham, Simon Davis, Jonathan Daw, Péter Delmár, Terry Duggan, David Fleetwood, Danny Grover, Brian Hawley, David Hines, Tony Jackson, John Jordan, Scott MacKee, Laurence Marchant, Darryl Paes, Joe Refalo, Andy Wallace, Bob Wilyman, Richard Woods, S. Newton Anderson, Sheraton Blount, Ann Bormann, Julie Croft, Penny Francis, Marcella Markham, Irena Marr, Krystyna Marr, Kim Neil, Jane Pearl, Penny Pearl, Burnell Tucker, John Swindells, John Clifford
