Tango Negro: The African Roots of Tango

This 2013 French documentary traces the origins of tango back to the slave trade between Africa and South America and explains how the music and dance evolved into a Latin American form with myriad styles. For a film about such a vibrant art, this is exceedingly flat, giving a dry textbook treatment to the grave subject of African culture being exploited by imperialist countries. Talking-head interviews abound, though the principal authority here is musician Juan Carlos Cáceres, mechanically relaying historical information like a human Wikipedia page. Dom Pedro directed. In French and Spanish with subtitles.