Résumé: When the “Big Four”, Metallica, Slayer, Megadeth and Anthrax, shared a stage together on June 22nd 2010 in Sofia, Bulgaria, the show was beamed live into over 550 theatres worldwide via satellite in a special HD cinematic event. These four legendary acts broke out of the underground thrash movement in the 1980’s to dominate the metal world, selling millions of records and packing arenas across the globe. Despite huge demand, these musical giants had never shared the same stage. The legendary June 22nd 2010...