HBO has a documentary in the works that focuses on the life of rock musician Kurt Cobain. Variety reports that the pay-cable channel is working on a project about the Nirvana lead singer, who died two decades ago at the age of 27.

Filmmaker Brett Morgen (“The Kid Stays in the Picture”) is profiling Cobain, who died of a self-inflicted gunshot in 1994. The documentary is expected to air next year.

The film “Kurt Cobain: Montage of Heck” has been in the works for eight years. Morgen spent six years figuring out rights issues and lining up access to personal material, Variety said. Cobain’s family — including his widow, Courtney Love, and their daughter, Frances Bean Cobain — have cooperated with the film.

Morgen told Variety that, in addition to looking at Cobain’s music, the film will include his Super-8 movies, poetry, sculptures, photography and other artistic works that were little known.

Kurt Cobain