'Shut Up & Sing'

Near the end of Barbara Kopple and Cecilia Peck's documentary "Shut Up & Sing," Martie Maguire, the Dixie Chicks' perky, deeply dedicated fiddler, reflects on the three years of turmoil that overtook the country trio after singer Natalie Maines remarked onstage in London that she was ashamed President Bush was from Texas, her home state. (The singer's notorious aside, seen in its full glory here, actually roped in her bandmates: "We are ashamed," she said.)

By Ann Powers

October 27, 2006