Go to the Special Features screen. Highlight the tape to the right of the words "Special Features". Press enter.
Now you'll get to see a short feature entitled "Being John Fawcett" (after the movie Being John Malkovich)
At the main menu, while the paw print is on play movie, hit up and you'll be able to select a hidden feature. It's the story boards for the final were-wolf scene.
With a DVD player, on the main menu, move right until "Scene Index" is highlighted, then press up. This reveals a hidden white symbol (the symbol for female, which is found around the menu systems). Select this to access a couple of pages of quotes from various film critics, magazines etc.
All easter eggs were generously submitted by Satelk