Questlove is gearing up for the release of his directorial debut with documentary Summer of Soul, and now a trailer for the anticipated film has been released.With a full title of Summer of Soul (…Or, When the Revolution Could Not Be Televised), the documentary is about the Harlem Cultural Festival of 1969 – otherwise known as “the Black Woodstock” – which took place the same summer as Woodstock.The trailer initially premiered during the 93rd Academy Awards, which Questlove served as music