Knock on Wood is about how a single individual can change the status quo. This documentary by Ron Grunhut is the story of Valerie’s groundbreaking first trip to Ghana, where her quest to master an obscure West African marimba led to an unexpected change in the area’s relationship to its women.

Knock on Wood has shown recently at the Woodstock, Big Apple, and Nashville Film Festivals, as well as the Desmond Lee Africa World Documentary Film Festival (St. Louis, Missouri and Bridgetown, Barbados), the “Tiburon International Film Festival” in California, and “The United Nations Association Film Festival” at Stanford University