Here's a video from the movie Neighbors that explains the animation process that I was involved in. If you're impatient you can skip to the 4 min mark to watch the final product. Enjoy!
http://www.kickstarter.com/projects/1614136198/neighbors-not-your-daddys-mid-life-crisis-movie/posts/335079
http://www.kickstarter.com/projects/1614136198/neighbors-not-your-daddys-mid-life-crisis-movie/posts/335079