This video is apparently a proof of concept presented to Stan Sakai, to secure the movie rights to Usagi Yojimbo.
A DVD is planned, from what I hear -- but what would help is to spread this video to others (so possible investors) can see it.
This looks like it would be a fantastic way to introduce Usagi Yojimbo to a wider audience. I sure hope it's successful!
BTW - Senso, issue #2, comes out September 3ed (I'm very much looking forward to the continuation of H.G. Wells' aliens landing in Usagi's Japan)
I also wanted to point out, for anyone interested, there is a FANTASTIC VIDEO, of Mike Richardson and Stan Sakai going over the history of 47 Ronin, and their work on their own rendition of the famous story. It's really fascinating!