“THE COLOSSUS OF DESTINY: A MELVINS TALE” SCREENINGS – DON’T KNOCK THE ROCK FILM FESTIVAL (LOS ANGELES) LATE JULY AND AUG. 26 – 28 AT PSYCHO LAS VEGAS The producers behind the eagerly awaited Melvins’ documentary, “The Colossus of Destiny: A Melvins Tale,” have announced the first public screenings of …