Years before Hollywood power player Jon Liebman was ever chairman and CEO of Brillstein Entertainment Partners — which reps clients such as Brad Pitt — he was clerking for a federal judge in the courthouse where the heavily publicized Mafia Commission Trial took place in 1985.

As executive producer of new Netflix docu-series “Fear City: New York vs the Mafia,” Liebman was able to connect director Sam Hobkinson with key participants in the case. But even Liebman was astonished by what they uncovered.

“There were different FBI squads for each Mafia family, and the FBI had to scurry to organize itself to mirror the way the Mafia had organized itself,” he told us. “And the interviews with the FBI ‘black-bag men,’ who went into the mob’s homes to bug them and collect evidence, are fascinating.”

He said the series’ producers are even “in the early stages of actively considering what “Fear City 2” would look like. The series about taking down the “five families” features Rudy Giuliani.