"Agharta's what we start with in the movie. Our point of departure is the silent period, the five years in which Miles didn't really play — '75 to '79. I believe his music got to a place where he pushed it as far as he could [Agharta was released in 1975]. He'd been so prolific and had followed that muse wherever it went. I know he was exhausted at that point. Not just musically but physically and emotionally. If you're on that sort of train where you've got to keep coming up with the next thing — I can imagine how exhausting that can be. When I talked to his nephew I said, 'Why didn’t he play?' He said Miles would say, 'I don't know what to say now. As soon as I know what to say I’ll come back and say it.' It then takes a lot of intestinal fortitude, energy and commitment and resolve to start it again until you're really ready to come back."