A fascinating filmic scrapbook of a decades-long collaboration between two of the more interesting musicians of their time, Grateful Dead leader Jerry Garcia and mandolin virtuoso David Grisman. Garcia, of course, was a genuine cultural icon, the only rock guitarist to have been immortalized as both an action figure and an ice cream flavor. But even some of his most devoted fans are relatively unaware of his roots in bluegrass and folk. This appropriately roughhewn documentary is an attempt to set the record straight, with lots of interesting archival footage going back to the early '70s. But the bulk of its running time is taken up by an examination of Garcia's coll...