HBO's Nirvana documentary 'Montage of Heck' to air 'unheard Kurt Cobain originals'

SEATTLE, Jan. 13 (UPI) -- Montage of Heck, HBO's upcoming documentary on rock legends Nirvana, will feature previously unreleased music recorded by lead signer Kurt Cobain, the cable network confirmed in a statement.

Directed by Brett Morgen (The Kid Stays in the Picture, 30 for 30), HBO promises "the film provides no-holds-barred access to Cobain's archives, home to his never-before-seen home movies, recordings, artwork, photography, journals, demos, personal archives and songbooks."

In addition to new insight into the band's history and work, Montage of Heck also will also include "dozens of Nirvana songs and performances, as well as previously unheard Cobain originals."

Montage of Heck produced by Cobain's daughter Frances Bean Cobain, making it the first Nirvana documentary produced with apporval and help from Cobain's family.

The documentary is named for the Montage of Heck "mixtape," a 36-minute audio mashup of clips from various pop songs across numerous genres. The eclectic musical montage features music by The Beatles, William Shatner and the Butthole Surfers, to name only a few.

Montage of Heck premieres at Sundance on Jan. 24 and on HBO on May 4.