http://www.cinematical.com/2010/03/14/have-green-band-trailers-gotten-too-racy/
http://www.cinematical.com/2010/03/14/have-green-band-trailers-gotten-too-racy/
http://www.cinematical.com/2010/03/14/have-green-band-trailers-gotten-too-racy/
http://www.firstshowing.net/2007/10/08/movie-theater-incentives-what-works-what-doesnt?