Ahmir “Questlove” Thompson has been tapped to direct Black Woodstock, a feature documentary film about the 1969 Harlem Cultural Festival.

The movie, produced by Robert Fyvolent and David Dinerstein, will tell the untold story of the festival, which took place in Harlem’s Mount Morris Park in New York City. It will include never-before-seen footage of various performances from the event, including Stevie Wonder, Sly and the Family Stone, Nina Simone, B.B. King and more. The festival took place the same summer as the famed Woodstock Festival, yet received almost no mainstream media coverage.

“I am truly excited to help bring the passion, the story and the music of the Harlem Cultural Festival to audiences around the world,” said Thompson via a press release. “The performances are extraordinary. I was stunned when I saw the lost footage for the first time. It’s incredible to look at 50 years of history that’s never been told, and I’m eager and humbled to tell that story.”

The film marks Questlove’s directorial debut. An official release date for the film has not yet been announced.