It's so FLUFFY!

I saw Despicable Me yesterday.  Loved it.  How much do I love Agnes and her unicorn obsession?  The movie reminded of the most basic of storytelling techniques that all writers should consider.  When creating a hero (even an anti-hero like Gru) give him something he wants more than anything (stealing the moon) and then make him have to sacrifice it for something he won't admit makes his life better, but knows will (the three girls).