During a remarkable run in the 1970s, it's arguable that Hal Ashby may have made 'better' films, but he didn't make one as important as Bound for Glory.
Based on Woody Guthrie's 1943 memoir describing his experiences travelling America during the Great Depression of the 1930s, this is much more than a music biopic. Essentially a series of profound vignettes, Bound for Glory is beautifully shot by Haskell Wexler and underplayed with equally great grace by David Carradine as Guthrie. There's a compelling authenticity in every aspect of this film, with the recreation of the hobo camps a particular poignant and sobering highlight.
Political and poetic, Bound for Glory is the 70s New Hollywood answer to The Grapes of Wrath, with a message that's as clear, strong and relevant to this day. An important film indeed.