...in a unique twist [Kurt Cobain] will narrate the film, with producers using more than 25 hours of interview tapes recorded by journalist Michael Azerrad between December 1992 and March 1993. Azerrad is most famous for his Nirvana biography 'Come As You Are', which is regarded as one of the most authoratitive books on the band. "The film is based on a series of interviews that Michael Azerrad conducted with Kurt while researching the book. There are more than 25 hours of these audio interviews in all, none of which have been heard before by anyone."