<http://schema.org/headline>
"The Dark Knight features BD-Live chat with Chris Nolan for first 100,000 -- Bat Growl not included"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2008/11/17/the-dark-knight-features-bd-live-chat-with-chris-nolan-for-first/>