Learn about the singer who gave "voice to the voiceless ones" in this revealing documentary about Mercedes Sosa. Longtime admirers and new fans alike will enjoy reviewing the Argentina-born folk star's 50-year life and career by way of this intimate profile that surveys her influential artistry─leaving behind an impressive legacy of strong personal and political statements through music, beloved in Latin America and around the world. 93 min. Widescreen (Enhanced); Soundtrack: English, French, Portuguese, and Spanish; Subtitles: English. In English, French, Portuguese, and Spanish with English subtitles.