Here are some easter eggs for the Donnie Darko DVD:

1: From the Commentaries / Subtitles menu, click on Patrick Swayze's left eye. You'll then be shown a deleted scene. If you then selected Frank's head in the commentary of that scene, you'll get another deleted scene.

2: From the main menu, select Special Features then press right on the controller to watch a special deleted scene. Once you've watched the scene, play it again and when you see the rabbit head appear, press Enter, you'll then get another deleted scene.