I was about to blog about the concept of the Uncanny Valley - the idea that at a certain level of animation, things get so close to realism that humans instinctively read it as creepy rather than endearing. But then I found this page describing the uncanny valley as it pertains to The Incredibles vs The Polar Express.
Screw it all, I just want to watch The Spongebob Squarepants Movie. No threat of uncanniness there.