A documentary that is like the music of the band it focuses on, Earth: slow, poetic and immersive, eschewing the traditional music documentary structure in favour of an atmospheric exploration. The world’s slowest metal band, led by Dylan Carlson, reveals itself through the testimonies of a painful past — heroin use and a connection to Kurt Cobain’s death, a ghost that haunts the enterity of the film — becoming something if not triumphant, at least sublime.