| APES | Heston's foes in 1968 sci-fi movie |
| HAL | ___ 9000, computer controlling the spaceship Discovery One in 1968 sci-fi film 2001: A Space Odyssey (1,1,1) |
| DULLEA | Keir ?, US actor who starred as Dr Dave Bowman in 1968 sci-fi film 2001: A Space Odyssey (6) |
| APE | Inhabitant of a 1968 sci-fi movie planet |
| ASPACEODYSSEY | 2001: __, 1968 sci-fi movie by Stanley Kubrick (1,5,7) |
| PLANETOFTHEAPES | 1968 sci-fi movie that (spoiler alert!) is set on Earth |
| JANEFONDA | Star of the 1968 sci-fi movie Barbarella (4,5) |
| NEEDS | "Mars ___ Women" (1968 sci-fi movie) |
| TAYLOR | Astronaut played by Charlton Heston in the 1968 sci-fi film Planet of the Apes (6) |
| PLANETOFTHE | 1968 sci-fi classic; the missing title word is hidden in each of the long across entries |
| VADIM | Roger-, director of the 1968 sci-fi film Barbarella (5) |
| PLANET | - - - of the Apes, 1968 sci-fi film starring Charlton Heston (6) |
| OPENTHEPODBAYDOORSHAL | Commanding catchphrase derived from a 1968 sci-fi epic? (4,3,3,4,5,3) |
| CLARKE | Co-writer with Stanley Kubrick of the screenplay to the 1968 sci-fi film 2001: A Space Odyssey (6) |
| ANDROIDS | Do ____ Dream Of Electric Sheep?, 1968 sci-fi novel by Philip K. Dick (8) |
| SPACEODYSSEY | '2001: A ***** ******* ', 1968 sci-fi film directed by Stanley Kubrick (5,7) |
| ODYSSEY | 2001: A Space _, 1968 sci-fi film directed by Stanley Kubrick (7) |
| PICTS | Romans' foes in Britain: fourth century |
| REBS | Yanks' foes in the Civil War |
| SHIRTS | Skins' foes in pickup games |
