Neil Young brings a gruff legitimacy to the creaky folk harmonies of his sometimes bandmates Crosby, Stills, and Nash, and Déjà vu is a documentary of their 2006 tour, in which Young coerced the wheezing old men out of their wheelchairs and led them in a setlist of new anti-Bush, anti-war songs, much to the chagrin of their former-hippie, now-conservative fanbase. NL