I like re-reading certain authors..Barbara Michaels/Elizabeth Peters; Terry Pratchett; Agatha Christie; Dorothy Sayers. Sometimes it's for visiting old friends in the characters, and sometimes it's for putting the books in perspective to when they were written, looking at the social/political situation 'between the lines', as it were. Sometimes it's interesting to read old SF to see how their idea of future science meshes with what's really here. An interesting one is in Asimov's 'Naked Sun' they are talking about making sure fetuses(feti?) are genetically perfect..but of course they can't tell directly, so they measure the complete metabolism which will tell them if the genes are OK. Exactly backwards from what we can (almost) do now...
Anyway, mostly it's books that I know I'll enjoy. I'm trying to break out of my rut and read stuff I wouldn't ordinarily--and then my cybook crashed

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As far as movies...I rarely sit down and watch a movie again just to watch it (with the exception of Amelie--wonderful movie, and you need to watch it in French with the English subtitles, not dubbed. The narration is too well meshed with the movie to mess with). However, I watch many movies while I do other stuff--read email; fold clothes; sew; etc. and I need to be able to come and go without missing anything. Movies like 'Bringing Up Baby'; 'Lethal Weapon'; Die Hard etc that are complete brain-candy are good for that.