1.It's People! (2 words) (12)
2.Famous stop motion artist behind Clash of the Titans and Sinbad (11)
7.Stars Robbie the Robot and Leslie Neilson (2 words) (15)
10.Cornelius or Dr. Zaius (3)
11......., Phone Home! (2)
12.George Lucas' epic space saga (2 words) (8)
15.Muppet from Space (5)
16.Keanu Reeves in The Matrix (3)
17.Stars Tom Cruise and Unicorns (6)
19.Richard Dawson runs a deadly game show (2 words) (10)
20.Cheesey SF flick starring Jane Fonda (10)
23.Tagline: In Space, No One Can Hear You Scream (5)
24.Dr. Frankenfurter's creation (5)
25.Tagline: It feels no pain, or pity. It can't be reasoned with, it can't be bargained with, and it absolutely will not stop until you are dead (10)
26.Gene Roddenberry's take on the future (2 words) (8)
28.Recruited Alex Rogan, video gamer, to save the galaxy in The Last Starfighter (8)