And while she appeared to lavish praise on The Firm, there was one member of the Windsor clan that she interviewed who she claimed was one of her worst interviewees - Princess Margaret's ex-husband Antony Armstrong-Jones, also known as Lord Snowdon.Ahead of last year's series Princess Margaret: The Royal Rebel, Ms Britton outlined how "spectacularly rude" Lord Snowdon had been when they spoke more than a decade ago.Writing on Twitter, she said: "Watching the documentary about Princess Margaret and Lord Snowdon on @BBC2."I interviewed Lord Snowdon about 12 years ago and I can tell you he was the most spectacularly rude and uncooperative interviewee I have ever met."And I’ve met a few so, Bravo!"The documentary recalled aspects of Margaret's.
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