After premiering at Sundance earlier this year, making its rounds through the festival circuit, and debuting for both television and internet audiences, Brett Morgen's Kurt Cobain documentary Kurt Cobain: Montage of Heck will be making a reappearance in theaters starting August 7th. The re-release will feature the same footage shown on HBO this past May, but will also include a never-before-heard demo recording from Cobain. Morgen won't say where it appears in the film - his effort to prevent bootlegging - but does say that he worked the song in without altering the documentary's original cut.

Billboard learned of the previously unreleased track in an interview with Morgen, who selected the audio of Cobain singing falsetto from one of the many unmarked cassette tapes he had to comb through. Though fans will be able to hear this new audio track in the theatrical re-release, a clip that was apparently cut from the final film has also made its way onto the internet today. We've got that for you below. Be sure to click here for Steve’s interview with writer-director Morgen, and click here for Adam’s review from Sundance.

Watch the previously unreleased clip that was cut from Kurt Cobain: Montage of Heck below:

Here’s the official synopsis for Kurt Cobain: Montage of Heck.

From acclaimed director Brett Morgen, this first ever, fully authorised documentary feature blends Cobain’s personal archive of art, written word, music (both his most famous and some that’s never been heard), and never –before-seen home movies, with animation and revelatory interviews from his family and closest confidantes. 

 

Following Kurt from his earliest years in Aberdeen, WA, through the height of his fame, it creates an intense and powerful cinematic insight into an artist who craved the spotlight even as he rejected the trappings of fame, 

Those of Kurt’s generation will learn things about him they never knew. Those who’ve discovered the man and his music more recently will understand what makes Kurt the lasting icon that he is.

 

Just like the legendary frontman of Nirvana himself, COBAIN: Montage of Heck is authentic, visceral and unflinching. It will get into your head and stay there long after the end credits roll.