This video is a Canadian sex ed commercial from the Planned Parenthood Federation of Canada. It takes a more... uh... "modern" approach to teaching, and though it starts off kind of slow, the last ten seconds are gold.
This might not be the best thing to watch in front of children or co-workers or whatever, since it's obviously about sex and there's a few humorously sexually explicit things
http://gprime.net/video.php/sexedcommercial