As far as Hardcore Festivals go it doesn't get much better than Sound And Fury. Check out part 2 of this pretty cool documentary on the origins and organisation of the fest mixed in with some interviews and live footage of BackTrack, Suburban Scum, Violation, The Suicide File, Trapped Under Ice, Ringworm, Trial and many more.
In case you missed part 1, here it is again. It featured Ceremony, The Bitter End, Defeater, FocusedXMinds, Not Sorry, Down to Nothing, DYS and more