What films are good examples of Sound Design to study and take note of?
I'm particularly looking for films which sound was used to forward the story with excellent results. Not just using sound for the sake of using sound. Ideally these films would be both of good technical quality as well as artistic in it's sound design. They could be of any genre, and preferably made within the last 3 years, however, I know there are definitely good classic films out there with superb sound design.
Please put at least some information about the film's sound and why you consider the sound well executed.
Thanks - Ryan