Flushed Away ignored

So I was checking out the list of movies nominated for Golden Globes this year, and in the animated section they have Cars, Happy Feet, and Monster House. Umm...I thought Cars was supposed to be the weakest Pixar movie to date, and that it was mostly just a kids movie. I've heard Happy Feet and Monster House were surprisingly good, but I haven't seen any of them. However, I did see Flushed Away, and I loved it. How did it get ignored? Also, wasn't Over the Hedge supposed to be better than Cars, also? So why is Cars nominated?