This year’s great music doc gives an all-access pass to the star-studded 12-12-12 benefit concert at Madison Square Garden, featuring performances by a who’s who of the last half-century of rock and pop music, including Paul McCartney, The Rolling Stones, The Who, Bruce Springsteen, Billy Joel, Eric Clapton, Kanye West, Alicia Keys, and more. Set against the backdrop of Hurricane Sandy’s devastating effects on New York City and ongoing recovery efforts, directors Amir Bar-Lev (“The Tillman Story,” TCFF ‘10) and Charlie Lightning mix energetic performance footage with casually hilarious candid moments from backstage in this expertly made concert doc.