The problem is not ignorance. It is preconceived ideas" says Dr. Hans Rosling. Dr. Rosling's speech in the annual TED forum debunks a lot of myths about the developing world using data. The animation is fantastic and so is the narration which we can see comes with a lot of passion. An excellent piece of material that can be used to show how data analysis can provide wonderful insights.
Incidentally the TED talks are something I recently stumbled on to and they definitely seem worth listening to once a while.