“I liked the environmental element and how it dealt with the deterioration of the Earth. The need to protect it is a storyline that’s just in the background, but it does cause you to think because in Astro Boy’s world, no one can really live on the surface of the earth happily anymore. I also liked the idea that even though you’ve been told from day one to dislike something or keep something at arm’s length, you should really question it if your heart tells you the opposite. It’s important for everyone to make their own decisions. Otherwise, we’d all be lemmings.”
- Kristin Bell told Moviefone, when asked what attracted her to lend her voice to the animated feature Astro Boy.