The film is narrated by Yance Ford, who produced along with Joslyn Barnes and co-producer Signe Byrge Sørensen. Actor Danny Glover, Susan Rockefeller, Tony Tabatznik, Michel Merkt and Laura Poitras executive produced.

Ford spent 10 years working on the documentary, even hiring private investigators to assist him in tracking down the detectives who handled his brother’s homicide as well as the prosecutor who unsuccessfully presented the case to an all-white grand jury for indictment.

Speaking to PEOPLE, Ford says he hopes Strong Island gets people thinking about ways to amend the criminal justice system.

“I look forward to having a lot of really vigorous conversations about the film,” he says, “and I welcome them all.”

Strong Island will premiere on Netflix on Sept. 15.

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