You know, I just finished reading Moore's multipart discussion with Dave Sim in several Rick's Story (I believe) issues of Cerebus. Utterly fascinating if you haven't seen it (or even if you have.) You can at least count on Sim to ask questions that aren't in your average media interview.
Just watched this online . Not bad, but the visuals went a little over the top and distracted from what he was saying sometimes. Too much emphasise on Superman/Batman in the intro, but at least they covered the basic high points. I was surprised they didn't mention the films and his disassociation, but that may have been his influence I guess.