Relive grunge-obsessed youth with Montage of Heck, an authorised documentary of Kurt Cobain, released in cinemas today. Co-produced by the late singer’s daughter, Frances Bean Cobain, and made with the cooperation of his family, including ex-wife Courtney Love, it’s a distinctly personal project. The vivid collage brings to life home movies, unreleased recordings, artwork and journals from the Nirvana frontman’s own archives, and premiered at Sundance earlier this year to unanimously glowing reviews. From April 23 in Dutch cinemas.