After committing suicide in 1994 at the age of 27, Nirvana frontman Kurt Cobain left behind not only a troubled legacy but also voluminous journals and recordings, unseen and unheard by the countless fans who had to cope with the too-soon departure of the moody poet laureate of grunge. Unseen and unheard until now, that is. Inspired by the title of one of Cobain’s homemade mixtapes, Montage of Heck, appropriately, is itself an evocative and raucous assemblage, adding up to more than the sum of its many parts. Seen together for the first time, authorized accounts of Cobain’s family and bandmates, home movies, behind-the-scenes footage, animated sequences, and television interviews crackle with new meaning when mixed into the film’s multimedia context. Audacious, like its subject, Kurt Cobain: Montage of Heck is an audiovisual collage that illuminates a dark star.  TM