Have you ever found any DVD "Easter Eggs"?
According to Inverne's Stage & Screen Trivia by James Inverne, the following "easter eggs" are available on these DVDs:
Moulin Rouge - contains a hidden joke reel. To access: On disc 2's main menu, select "more." At the next screen, highlight "back" and press the "down" arrow. A fairy will be highlighted. Press enter.
Pirates of the Carribbean: The Curse of the Black Pearl - contains a hidden interview with Keith Richards talking about how Johnny Depp based his characterization on him. To access, go to disc 2's main menu, select the "Moonlight Serenade" scene progression. Then highlight the "Main Menu" option and press the "down" arrow twice. One of the skeleton's teeth will be highlighted. Press enter.
The Lord of the Rings: The Two Towers (extended edition) - contains Gollum's speech at the MTV Movie Awards. To access from disc 1, choose "Select A Scene" from the main menu. Go to the last page. Highlight "Of Herbs and Stewed Rabbit" and press the "down" arrow. The ring appears. Press enter.
If you have success with any of these, let me know!