A trailer for the new documentary about Nirvana's Kurt Cobain has emerged.

'Kurt Cobain: Montage of Heck' differs from previous documentaries about Cobain because it is the first time that a film has been officially sanctioned by his estate; director Brett Morgen was given unprecedented access to the rock icon's personal and family icons, and his daughter Frances Bean Cobain served as an executive producer on the film.

The film will be shown at the forthcoming Jameson Dublin International Film Festival on Saturday, March 21st - but you can see the first trailer below. 

Last week, Cobain's childhood home went on the market for $400,000.