Guillermo del Toro's opening for the Oct. 6, "Treehouse Of Horror" episode of The Simpsons' is the most epic thing the show's done in a long time. It's almost three minutes of non-stop horror movie references. Here's just a handful:
• Hellboy
• The Birds
• World War Z
• Cthulhu
• Phantom Of The Opera
• Edgar Allen Poe
• Frankenstein
• Dracula
• Even the Hypnotoad from Futurama
See how many more you can find!