Various artists [Metallica, Slayer, Megadeth, and Anthrax]
When "the big four"---Metallica, Slayer, Megadeth, and Anthrax---shared a stage on June 22, 2010, in Sofia, Bulgaria, it was the moment their fans had waited decades to participate in what otherwise was a very limited run of dates. That monumental show was beamed live into over 1,000 theaters worldwide via satellite in a special HD cinematic event. The Big Four: Live from Sofia, Bulgaria contains full performances from all four bands on two DVDs as well as behind-the-scenes and interview footage. These four acts broke out of the underground thrash movement in the 1980s 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---until now.