
Formulate an answer to this elaborate question: Which documentary featured cameos by musicians, Go Further or The True Glory?


Dave Matthews, Natalie Merchant, Ken Kesey, Bob Weir (of the Grateful Dead), Michael Franti (of Spearhead), Anthony Kiedis (of Red Hot Chili Peppers), Rob Heydon, Medeski Martin & Wood, and The String Cheese Incident
