When African-American baby boomers wax nostalgic about a time when “black movies were good,” they most likely have 1972’s Lady Sings the Blues in mind. The heavily fictionalized Billie Holiday biopic. bluesy country-and-jazz-tinged vocals (think Neko Case meets Billie Holiday) and commanding stage presence. Last fall, Anderson released her debut record, "Beyond The Lights," which showcases her infe. Musical biopics are a staple of Hollywood. “Walk the Line” for Johnny…