Why does Hollywood love the Holocaust?

Indeed, "The Reader," "Defiance," "Valkyrie," "Adam Resurrected" and the "The Boy in the Striped Pajamas" all touch in some way - while not necessarily directly - on the slaughter of the 6 million. In view of this recent spate of films, how to explain Hollywood's continuing fascination with the Holocaust?

http://www.haaretz.com/hasen/spages/1063345.html