According to USA Today, Disney's upcoming release of "Sleeping Beauty" will have some special features not seen on any other high definition disc.
It has a cool (I guess) feature that allows it to simulate the current weather conditions of the city the viewer is in.
(Ex: If its raining where you live, it will be raining on Sleeping Beauty's castle).
You will also be able to send custom video messages called "movie mail", play trivia against other watchers around the world.