I am not a science-fiction fan; it always seems so worthy, so two-dimensional, sanitised and precious (beam me up Sooty! Ooh, now that's a handy portal) relying far too much on the device of deus ex machina and on people being dazzled by the unfamiliar. But this weekend I saw the film of the year - District 9. It is more a science-fiction/horror and it is gritty, dirty, gripping and engaging. If all science-fiction ran to this standard I might be a fan.