Dr. Horrible's Sing-Along Blog on Hulu.com

A very funny and well done short sci-fi musical in three acts. Starring Neil Patrick Harris.

And Nathan Filion; and written by Joss Whedon. I saw it when it was first released on the internet and it's hilarious. Sadly this new link doesn't work outside the United States - at least, not for me.

The background to the video is here: http://www.drhorrible.com/plan.html

The series is downloadable from iTunes.

Right. I understand that Hulu is only accessible from within the U.S.

Here is the main web page, should be accessible from anywhere.