A short interview with Peter Mayhew. I’m not sure it anyone outside of the Uk will be able to view it though
http://movies.sky.com/chatting-with-chewbacca
Mod Edit: a working link to the above interview can be found here:-
https://web.archive.org/web/20120423005830/http://movies.sky.com/chatting-with-chewbacca