Watch clips from Tomorrow's World and My Life in Science Fiction.
Authors Kim Stanley Robinson and Ursula K. Le Guin on Frank Herbert's classic novel.
Dominic Sandbrook and Neil Gaiman discuss Hitchhiker's Guide to the Galaxy.
Dominic and Steven Moffat explain why the Daleks are the most enduring alien invaders.
Barry and Dave catch-up with Brian Blessed at a special screening of Flash Gordon.
Keir Dullea recounts how 2001's computer HAL initially sounded like Michael Caine.
Super-fan Garry Hailes shares his thoughts about the Star Wars Stormtroopers.
