Morgan Neville describes the making of the documentary Troubadours: Carole King / James Taylor & The Rise of the Singer-Songwriter, a riveting chronicle of the time, weaving together archival footage, rare performances, and interviews from a veritable who’s who, including Elton John, Steve Martin, and Bonnie Raitt. Neville discusses his editing process and the relationship it has to the way he makes a mix-tape; elements of the film that serve as a ode to Los Angeles; and more.