Sundance Film Festival Review: A Criminally Overlooked Festival Gets Its Proper Due In Compelling Documentary “Summer Of Soul (…Or, When The Revolution Could Not Be Televised)”

  In 1969, during the same summer as Woodstock, a different music festival took place 100 miles away. More than 300,000 people attended the summer concert series known as the Harlem Cultural Festival. It was filmed, but after that summer, the footage sat in a basement for 50 years. It has never been seen. Until …