A very good video about Scrum with Ken Schwaber (inventor of Scrum):
http://www.youtube.com/watch?v=IyNPeTn8fpo
The session takes place at Google's Tech Talks Channel.
Topics covered include: What is Scrum, success and failure stories, XP (eXtreme Programming), burn-down charts, the role of the scrum master, dealing with requirements changes, the impact of working overtime and not worrying about code quality, among others. Also a great Q&A on distributed teams, when and how much to think about design and architecture, etc...
Highly recommended!
Read the complete post at http://blogs.fullsix.pt/blogs/ricardofiel/archive/2008/06/17/scrum-video-with-ken-schwaber.aspx