When I talked about agile code review on nForum the other day, I made a screencast recording, which is now online. (I admit sound quality could have been somewhat better.)
For better readability of the slides, I recommend viewing the video in HD on Vimeo
Note that the slides and links to code review tools and further reading are in my previous post.
If you want to share the video, please link to this post rather than directly to Vimeo.