Desc: Powerwolf: The Monumental Mass: A Cinematic Metal Event: Directed by Jörg Michael. With Attila Dorn, Matthew Greywolf, Falk Maria Schlegel, Charles Greywolf. An exciting journey into the world of Powerwolf - in months of hard work the wolves have thought up a story and filled it with life, invented and perfected show effects and scouted locations and actors.