The Hollywood careers of Aaron Copland and Hanns Eisler brought the composers and their high art sensibility into direct conflict with the premier producer of America's potent mass culture. Drawn by Hollywood's potential to reach--and edify--the public, Copland and Eisler expertly wove sophisticated musical ideas into Hollywood and, each in their own distinctive way, left an indelible mark on movie history. Sally Bick's dual study of Copland and Eisler...