Metallica, Slipknot and more all feature in the trailer for new hard rock documentary Long Live Rock … Celebrate the Chaos – watch it below.The film, which is set to come out on March 11, also features members of Rage Against The Machine, Guns N’ Roses.Filmed at a number of rock festivals in the US over the years, the film features interviews with Metallica’s Lars Ulrich, Tom Morello of Rage Against The Machine, Slipknot’s Corey Taylor, Guns N’ Roses’ Duff McKagan and many more.Watch the new