Work of Director Spike Jonze, The Easter Egg - Penguin Escape

Although not really an easter egg, the process kind of is. Right under the "play movie" icon is a "CTC" icon. When clicked on it explains about having to find penguin footprints around the differnt menus to get clues that will spell something out.

Clue 1: (S) Is found under the "DWK" icon
Clue 2: (U) Is found under the "Special Features" icon
Clue 3: (H) Is found under "games and activities" which is under "DWK"
Clue 4: (I) I forget where I found it but it is I...

Anyway go back to "CTC" and spell out the clues in the order they ask (SUSHI), and your surprise is a game. The Penguin Escape. Enjoy!