If you live in the US, you can now download the VUDU application which allows you to stream cinema-quality movies in the comfort of your home theater, complete with full 1080p HD with 5.1 Dolby Digital Plus sound. The movies are available on-demand and you only pay for the movies that you watch. Also, when you sign up for a VUDU account, you will receive a $5.99 credit on your account for one free HD rental.
Check out the walkthrough video below: