Iron Maiden Release Trailer For "Behind The Beast" Documentary From "En Vivo!"

Iron Maiden have released a trailer below for their new 88 minute documentary, “Behind The Beast“. The feature is included on select format versions of the bands forthcoming 2xDVD, Blu-ray, 2xCD live offering “En Vivo!“, which is due in stores March 26th. The set captures the bands April 10th, 2011 show at the Estadio Nacional in Santiago, Chile.