Music, art, literature, anthropology, archaeology, history, sociology, psychology, playing guitar, writing....
Hunter S. Thompson, Michael Hedges, Buddha, Henry Ford, Maynard J. Keenan.
Tool, Black Sabbath, Led Zeppelin, Modest Mouse, Rage, NIN, Iron Maiden, Megadeth, Metallica, Nirvana, Soundgarden, Pantera, Primus, Pink Floyd, OZZY, QOTSA, Rammstein, Rush, Smashing Pumpkins, STP, System, Hendrix, Grandaddy, Doors, Enya, CCR, Beatles, Alice in Chains, APC, Muddy Waters, Miles Davis, Rolling Stones....and so forth.
This list would be too long, so I'll name a few big ones....Fight Club, Fear and Loathing, Falling Down, O Brother Where Art Thou, Pi, Taxi Driver, Waking Life, What Dreams May Come, Road to Perdition....that's it for the moment.
Curb Your Enthusiasm, Seinfeld, Simpsons, anything on the History Channel or Discovery Channel...