Steve James (Hoop Dreams) spent a year documenting the efforts of a trio of reformed hardcore gangbangers working to bring peace to Chicago’s volatile Englewood neighborhood. Instead of touting sports or rap music as the golden ticket, the “violence interrupters” champion a psychological approach to peaceful coexistence in an urban war zone. Another documentary that’s more engrossing (and enlightening) than 80 percent of its narrative counterparts. (2011) — Scott Marks
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