<http://schema.org/about>
"No Impact Man, a documentary showing all that Colin Beavan and his family are going through by trying to make zero net impact on the planet for one year, is hitting theaters in just over a week in major cities. Interested in seeing it? You could score"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/culture/no-impact-man-offering-free-tickets-to-twitterers-for-film-premiere.html>