In the IMax movie "Cosmic Voyage", Morgan Freeman narrates an update of it. It is, to my mind, the single most effective astronomy video ever. I make a point to show it for every classroom I visit, every scout troop I speak to. If you would like to see all of astronomy in six and a half minutes, take a look.
Alex, The Daytime Astronomer
p.s. yes, the video has an entire second half where they go inward, into cells and DNA and atoms. But that's not astronomy, so you have my permission to skip that part if you wish.
Tues&Fri here, via RSS feed, and twitter @skyday
Read about my own private space venture in The Satellite Diaries