MediaMagazine/BFI special again this year. Tying in with the BFI's science fiction season, it's a great read and takes in a few subjects close to my heart, including a look at sci-fi film poster art and an appreciation of Tarkovsky's Solaris.
For my own part, I'm rattling on about Alex North's rejected score for 2001: A Space Odyssey. Great fun. Get it here - for free!