Joni Mitchell proved her range when she momentarily cast off her folksy bent in the late 1970s and '80s and released albums that had a more jazzy, smoky feel. This documentary captures her 1979 tour supporting her album "Shadows and Light." Now, newly minted fans and long-time devotees can see her perform with the likes of Pat Metheny and Jaco Pastorius. Featured songs include "Coyote," "Black Crow" and "Why Do Fools Fall in Love?"