Novels: Don Chisciotte and Moby Dick as must-read, then some random Asimov, Dick, Heinlein or Gibson.
Movies: could think about it for hours, the answer would be Star Wars anyway. Maybe on a par with some of best John Carpenter's stuff (The Thing, Assault on Precinct 13, Dark star, Escape from New York, Big Trouble in Little China, Prince of Darkness). And the first three Alien of course.
Music: almost omnivorous, with a predilection for hip hop