Emmett Till, James Chaney, Medgar Evers, and four little girls from Birmingham — these are some of the well-known stories of racially-motivated violence from the civil rights era. But the Emmett Till Unsolved Civil Rights Crime Act — signed into law in 2008 — lifted the veil on more than 150 other victims for whom there still has been no justice.

Now, in collaboration with Retro Report, FRONTLINE (PBS) presents American Reckoning: an extraordinary look at the civil rights era - the violence and resistance - through rare footage filmed more than 50-years ago in Natchez, Mississippi, and the still-unresolved killing of local NAACP leader Wharlest Jackson.

Join FRONTLINE and Retro Report in conversation around the film with directors Yoruba Richen and Brad Lichtenstein along with Raney Aronson-Rath, Executive Producer of FRONTLINE.