Easter egg: On the Main Menu, when Scooby-Doo is startled by the ghost and he drops the Scooby Snack in his mouth, highlight it and then press Enter. This will access a short featurette on how it rained on set, during filming. Also, on the Special Features' second page, hit left on your remote and the sign with "Zoinks" under it will light up, then hit Enter.
Easter egg: On Disc 2, go to the Chamber Challenge in Activities and the narrator says something about a secret passage. Well, at the start instead of clicking the center forward arrow, be quick and press 'LEFT' on your remote, then it reveals the secret passage. On the U.S. release press 'LEFT' and then press 'UP' and again it shows the secret passage, bypassing the questions.
Easter egg: On the film disc (disc 1) of the Theatrical Version, in the language selection menu there is a THX logo somewhere. Highlight it using the arrows on your remote, then enter the number 1138 while you have it highlighted (may vary on different DVD players, on mine I have to push a little 10 button, then 1 1 3 8, which makes 1138). You will then be treated to a sequence of bloopers from the film.
Easter egg: Insert disc 2. Choose image database. Choose Locations and Sets. Go through the images until you come to the one with Halle Berry coming out of the water (number 12, but it differs). Press up on your remote. You now have a Halle Barry menu. You can now see Halle Berry come up out of the water from different camera angles.
Easter egg: At the main menu go to Sneak Peeks, place the cursor on the wave logo (that's the one that takes you back to the main menu) then click left on your remote control, you should see an outline of Stitch, press enter to see a preview of Stitch's upcoming movie.
Easter egg: Easter Egg on the Special Extended DVD: Put in the first movie DVD (The Two Towers Part 1), go to Select a Scene. Scroll all the way down past the last scene ("Of Herbs and Stewed Rabbit") and there should be a ring cursor beside "New Scene" and then click on it. It's Gollum's acceptance speech from the MTV Movie Awards. Because of the content, it is not appropriate for children. Please note that this easter egg is not found in the U.K. version.
Easter egg: On the second disc of the special edition enter "The Star Trek universe", go to "A Star Trek family's final journey", click left to highlight the top of the rotunda. When you enter, you can watch X-Men director Bryan Singer talk about his cameo.