Like in Shrek 4, the themes of Toy Story 3 are very grown up as they deal with growing up, moving on, and letting go.
I loved the movie and cried at the end, but despite the raving critics and the 99% Rotten Tomato Meter, it’s not the best movie of the year. That title currently goes to another animated movie: How to Train your Dragon. That movie’s masterful depiction of the relationship between Toothless and Hiccup, not to mention the complex father/son relationship, left me in awe the entire movie. The Kids are All Right might challenge it for the best movie of the year so far, but I have yet to see it.