What Happened, Miss Simone?

I have to admit i dont know much of the life of Nina Simone but has always been intrigued.  Premiered at Sundance the documentary film What Happened, Miss Simone? directed Liz Garbus shows the classically trained musican, chantuse and Black Power Icon life behind the scenes through archival never seen before footage.  I am hoping to fill in a lot of blanks as many musicans say that if they were stuck with a desert island recording for sure Nina Simone would be in that list. Its premiers on Netflix on June 26th.