Question: In which year did this city file the municipal bankruptcy, whose decline was documented in the 2012 documentary film, "Detropia?"
Sentence (from "Atlanta International Documentary Film Festival"): In 2009, Roger Nygard's "The Nature of Existence" was screened at the festival, as was Mike Ramsdell's "The Anatomy of Hate: A Dialogue for Hope", which won the Audience Choice Award that year.
Relevant evidence: No