Rock-concert films had always tended to screech and jitter. But in "The Last Waltz" the sound is both robust and pristine: you can hear a bass roar, or a pin drop. The cinematographer, Michael Chapman, and his virtuoso colleagues (including Vilmos Zsigmond and Laszlo Kovacs) work with impassioned lucidity. The editing fixes each Band member in your mind -- not just Levon Helm or Robbie Robertson or Richard Manuel, but Garth Hudson, who comes off as a cross between a church organist and the Phantom of the Opera, and Rick Danko, who resembles the young Robert De Niro. When all the guests join Dylan and the Band on the climactic "I Shall Be Released," the movie becomes an exhilarating vision of rock's polyglot vitality.