Movies: Alien, Apocalypse Now, 2001: A Space Odyssey (or any Kubrick), Videodrome (or any Cronenberg), Eraserhead (any David Lynch), Taxi Driver, The Seven Samurai, The Seventh Seal, really it'd be better just to ask because I could go on for days.
Music: Metallica, Led Zeppelin, Black Sabbath, Faith No More, Pink Floyd, David Bowie, Melvins, Tom Waits, Neil Young, Frank Zappa, Miles Davis, John Coltrane, Deep Purple, Neurosis, again this could go on forever.
Books: Various books by J.G. Ballard, Thomas Pynchon, William Faulkner, Kurt Vonnegut, Cormac McCarthy, etc. I've only recently (as in the past few years) tried to read more for pleasure.