This video, starring Atlatl Bob, is from a 2006 student documentary film by Jeremy Roberts. This particular excerpt was not used in the final production, but is entertaining nonetheless. It also provides additional insight into Atlatl Bob's background and how he got started in archeology and reproduction of primitive weapons and tools.
The video is about 1.9M and lasts about 50 seconds. Please be patient while the file downloads. If you do not have a current version of Quicktime installed on your computer, you can download Quicktime from Apple or download the video directly and view it with another player (you may need to right-click and select "Save As...").