Harlem Renaissance documentary finally gets global premiere 50 years after cameras rolled

Once Upon a Time in Harlem, completed by relatives of William Greaves after his death, showcased at Cannes

In 1969, the pioneering documentarian William Greaves wrote of his fury over the racially degrading stereotypes that white film producers threw up on American screens. It became clear to me that unless we black people began to produce information for screen and television there would always be a distortion of the black image,'" he said.

Three years later, Greaves began work on what he considered the most important footage he ever shot: a feature documentary gathering surviving figures of the Harlem Renaissance to reflect on the movement they had built half a century earlier.