This may sound odd, but "Crazy, Stupid, Love" offers a unique perspective on sound, primarily a less-is-more, deceptively complex minimalism. All about the use of negative space and how the soundscape evolves with the story.
It's also a good indicator as to what to be careful of as well because some sound effects were out of sync (out enough that I'm curious how it passed QC).
Here's a link to a writeup I did on it: http://www.stavrosound.com/blog/wordpress/2011/08/in-review-the-sound-of-crazy-stupid-love/link text
A Good Warning Though: The story can become so gravitating that it may take a second-viewing - the film unglued my analytical mind on the first viewing so I had to go back and see it again.
Good film to check out though for totally different reasons than some its bigger blockbuster brothers and sisters.