Directed and shot by Lou Angeli, a volunteer firefighter who was authorized to document the scene, "Answering the Call" is the latest in a now voluminous series of video records of one of the greatest tragedies in U.S. history. At a time when the country has been beset by another disaster that has resulted in heroic efforts by countless individuals, the film is a valuable reminder of the goodness that can result even from tragedy.

Subscribe to the Hollywood Reporter and see the entertainment industry from its best angle: the inside looking out. Complete access to real-time news and exclusive analysis that goes behind the scenes from film to television, home video to digital media.

   Subscribe now.