The Arcade Fire’s enigmatic Miroir Noir opens with its most authentic moment: the band faces each other in the middle of an audience and gingerly eases into “Wake Up”. The fans bunch awkwardly around them as Win Butler intones into a ghetto-taped megaphone. Renowned for their sojourns into the crowd, this particular gimmick is usually configured as a populist transgression of the supposed boundary between performer and audience. But this footage shows indie’s high priests seeming uneasy among th...