Mavis! is the first feature-length documentary on gospel/soul music legend and civil rights icon Mavis Staples and her family group, the Staple Singers. From the delta-inflected gospel sound she helped pioneer in the 1950s, to the “message songs” of the civil rights era marching beside Dr. Martin Luther King Jr., to massive hits such as “I’ll Take You There” in
 the soul-filled Stax era, and her recent Grammy-winning work with Wilco’s Jeff Tweedy, Mavis Staples is one of the most influential and enduring vocalists of our time and a true American icon.