"Kurt Cobain: Montage of Heck" is the first-ever documentary that has been authorized about the late frontman of Nirvana. It debuted at the Sundance Film Festival.

Brett Morgen is the first director to be given access to the "Smells Like Teen Spirit" singer's archives. The trailer shows that the filmmaker dug deep into his personal collection to produce a stunning wealth of photos and home videos that trace the special moments of his life cut tragically short.

The widow of Kurt, Courtney Love and his daughter Frances Bean, executive produce the documentary.

The Oscar-nominated Morgen suggested through the film that the Nirvana frontman was a happy kid who turned into a sullen teenager who found refuge in his art and music as his family life took a turn for the worse, Yahoo reported.

He painted, wrote songs and drew cartoons in his journal. This helped him channel the frustration and anger that he felt as a teen living in Seattle in the '70s.

His dedication to his craft paid off. His angry, mournful and brooding songs helped bring in the era called grunge in the Pacific Northwest. It also shot Cobain from local hero to the Gen-Xers to international rock icon.

The "Kurt Cobain: Montage of Heck" trailer suggests, however, that all he ever really wanted was a family. A wife, kids and some stability.

Unfortunately, he could not find peace despite everything and took his life at the young age of 28. He has since become a rock symbol for the young and the rebellious.

Morgen shared to Yahoo Movies UK that about 85 percent of the documentary's footage has never seen the light of day. He went through the musician's personal collection not only for videos but also for the pieces of art that he was able to create in his brief life.

"He worked in just about every form of media he could including painting, sculpting, filmmaking, sound collages, cartoon strips, short fiction, journal writing, photography, and of course music," the New Yorker shared. "Like any artist, Kurt left behind a visual and aural autobiography of his life. It was embedded in his work. Given how expressive he was across so many platforms, his life works makes a complete cinematic canvas that invites the viewer to take a journey through Kurt's interior world."

"Kurt Cobain: Montage of Heck" is set to air on HBO on May 4.