UPDATE: This is actually old news, it turns out, as the documentary has been available since July 28th. But it was news to me!
Jason Scott's GET LAMP, an extensive documentary about the classic text adventure that's been years in the making, is finished and SHIPPING as a 2-DVD set! I haven't seen it yet myself, but will be ordering a copy ASAP.
It features interviews with a number of important contributors to the genre, including Mike Berlyn, Steve Meretzky, Marc Blank, Lance Micklus, Dave Lebling, Brian Moriarty, Don Woods and and of course, Scott Adams.
What should I do now?
The director has several live screenings planned at select gatherings over the next few months.