The movie "The City of Ember" was based on a book of the same name by Jeanne Duprau. My son and I loved this book and the sequels as well. So we were looking forward to the movie. And the movie is exciting. But if you've read the book be prepared that there are differences. Nevertheless, a great DVD to knit by - I'd forgotten how relaxing it is to knit dishcloths and watch TV.