Starring in the titular role is Jeremy Allen White, and like Timothée Chalamet and Monica Barbaro in A Complete Unknown, the role requires him to sling a guitar or two as the Boss. To get ready for the role, White worked with session guru J.D. Having worked with Jack White, Tommy Emmanuel, Samantha Fish, Joe Bonamassa, and on the Baz Luhrmann Elvis biopic, Simo was tasked with teaching White guitar and helping him transform into Springsteen. “But last year, working on the Springsteen movie, they asked me if I would teach Jeremy Allen White to play guitar. Get The Pick Newsletter All the latest guitar news, interviews, lessons, reviews, deals and more, direct to your inbox!