Get a behind the scenes look into the making of Frederick Wiseman's City Hall as the legendary documentarian is joined by Boston Mayor Marty Walsh and GBH President and CEO Jon Abbott for a special hour-long conversation Friday, December 18, at 12pm. Called one of the best films of 2020 by The New York Times, Wiseman's four-and-a-half-hour epic spotlighting the tireless and essential work of Boston's public servants premieres Dec. 22 at 8pm on GBH2.

Watch the trailer for City Hall: