Slayer - Sonisphere Festival, Sofia, Bulgaria movie cast, crew and synopsis. Find out the exact Slayer - Sonisphere Festival, Sofia, Bulgaria 2010 film release date and the full information about its cast and crew. New high quality Slayer - Sonisphere Festival, Sofia, Bulgaria pictures behind the scenes. Best photos from the set can be used as HD wallpapers! Buy movie on DVD or watch it in theatre. If you have already watched Slayer - Sonisphere Festival, Sofia, Bulgaria please rate it and leave your review!