Easter egg: Go to special features and press button to go to next menu, when there keep pushing the right arrow. You will see a question mark press enter and see how they created Samara.
Easter egg: If you look under Special Features, use the arrow keys to highlight "On Set Peeks", then use the left arrow key to light up a Red symbol. If you click on it, another menu called Haunts will appear with 2 more features - one shows a long version of the home movies shown in the film. The other is a scare reel that shows all the scary parts of the movie condensed to about 2 minutes.
Easter egg: I found this on the full screen DVD. When you're at the main menu, keep pressing your left arrow button until the leftmost screen (located on the back of the seats) lights up. I'm not quite sure exactly what it leads you to, but it appears to be a 3-D model of the plane. I had to press fastforward to get through it, because it does take a little while. It starts off in English, then cycles to what I believe is German.