Great interview with el Chivo (cinematographer)
For anyone that's interested, here's his two cents:
http://www.theasc.com/ac_magazine/April2013/TotheWonder/page1.php
"Terry didn’t say this, but I felt that he was trying to separate To the Wonder from all the moviemaking that’s still connected to theater — from movies that feel acted, prepared and rehearsed. We were trying to find a more cinematographic approach to filmmaking and a way of using film language that was less connected to theater and literature and other art forms. Terry wants this art form to have its own way of expressing ideas and emotions, and that’s what was very exciting about the movie."