Easter egg: This is found on disc. 2 of the Platinum Edition DVD, in Backstage Disney in Treasures Untold: The Making of the Little Mermaid. You have to click to the right on Act V: A Mermaid Sings which reveals an anchor. If you select this you will see The Little Mermaid handshake performed by the co-directors.
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.