Manhattan’s upper crust were tight-lipped about Ghislaine Maxwell when a team of BBC filmmakers hit town this month, we hear.

Sources tell Page Six that producers of an upcoming BBC documentary on Jeffrey Eptsein’s alleged madam and her late, shamed press baron dad, Robert Maxwell, were in the Big Apple to interview subjects this month.

We hear the filmmakers managed to land an interview with David Boies — a famed attorney for Epstein’s victims — as well as various business associates of Robert, including a former p.r. rep and an exec who once helped Maxwell to buy the New York Daily News.

But high-society types who once rubbed elbows with Ghislaine and Epstein are running scared and keeping mum, sources said.

An insider told Page Six: “All members of higher society in New York refused to talk to the BBC. Some people are buying the copyrights to photos both in London and New York to remove the pictures from the market that shows them with Ghislaine and/or Epstein.”

Another source familiar with the project told us: “I bet that people in NYC high society aren’t lining up to speak to the BBC.”

However, producers of the three-part film — who were in town in early July for a week — are planning to return for more interviews, we hear.

“The Fall Of The House Of Maxwell” won’t air until after Ghislaine’s upcoming trial in November. The project was first commissioned last year by BBC Two, and is being made via UK banner Expectation Factual — which is headed by former BBC and ITV chief Peter Fincham and former Endemol boss Tim Hincks.

We hear that Boies was interviewed for the film this month at Hudson Yards, where a source said the legal eagle “stressed he feels the US government has a very strong case against Ghislaine.”