Two omissions in the Dylan doc worth considering:
Ramblin' Jack Elliot, and the controversy surrounding the suggestion that Dylan's early act was actually more acquired from this one time playing partner to Woody Guthrie. He supposedly was called "ramblin'" because he was known to go off on long stories whenever he struck up a conversation with someone. Strange they'd include Odetta and Woody but no Jack. I haven't seen "The Ballad of Ramblin' Jack," a film made by his daughter that goes into more detail, but want to.
Also no mention of Richard Farina, the author/folksinger who was married to Joan Baez's sister, Mimi. They recorded a few great albums in the mid 60s before, get this, he died in a motorcycle crash (the same year Bob was in his own crash!) Now that would've made for an interesting twist. The book "Positively 4th Street: The Lives and Times of Joan Baez, Bob Dylan, Mimi Baez Farina and Richard Farina" by David Hajdu goes into greater detail.