Photo: Getty

Diana, Princess of Wales, wears an outfit in the colors of Canada during a state visit to Edmonton, Alberta, with her husband.

WhenThe Crownmoved to the 1990s, it became inevitable that one key moment would have to be covered in detail: howPrincess Dianatold the story of her unhappiness in the royal family.

She turned to journalist Andrew Morton, who she’d heard from a friend was writing a book about her. For Morton, who used mutual friend Dr. James Colthurst as a go-between as he wrote his June 1992 bookDiana: Her True Story, it was surprising to hear some of the things that Diana told him, he recalls today.

“She talked about a woman called Camilla [Parker Bowles]. I’d never heard of her. Talked about bulimia nervosa — I’d never heard of it — and she talked about suicide attempts,” he tells PEOPLE in this week’s magazine. “I was staggered.”

“I foundElizabeth Debicki’sdepiction of Dianaunnervingly accurate and authentic. She had her speech pattern and mannerisms down pat, and I found the scenes very moving as it brought back a raft of deep-seated memories from that tumultuous time in the early 1990s,” Morton says.

Dominic West as Prince Charles and Elizabeth Debicki as Princess Diana in season 5 of The Crown.Netflix

The Crown Season 5

Morton says that while the show is based largely on reality, some elements were changed.

For more on PEOPLE’s exclusive interview with Andrew Morton, listen below to our daily podcast PEOPLE Every Day.

“There are a few exaggerations for dramatic effect, such as it was my office that was broken into — not my house. James Colthurst, the intermediary, was indeed knocked off his bike as he rode around Parliament Square of all places,” he recalled. “Diana was indeed concerned, and we had her sitting room at Kensington Palace swept for bugs. These incidents happened after I had been warned that the security services were looking for my mole.”

“The establishment are genuinely worried that this series will have an impact on the coronation of King Charles. Well, I’ve got news for them: it won’t. It will just make the interest in the King and the royal family more intense around the world,” he predicts. “Everybody knows what went on now, and they’ve accepted it. Diana’s dead. They’ve accepted it. I mean, this is now history.”

Netflix ; Jayne Fincher/Getty

Elizabeth Debicki, Princess Diana

Critics of the drama are “blamingThe Crownfor something that’s actually happened. It’s like denying history,” he adds. “There’s no getting around it. This is the reality of it. I mean, obviously they would like it not to be articulated, and for us all to be turned the other way, and for the emperor to have no clothes and for nobody to point it out. But that’s not the way it is.”

Andrew Morton.REUTERS/Alamy

2CHJW44 Royal biographer Andrew Morton poses for a photograph following an interview with Reuters journalists in London, Britain April 9, 2018. Picture taken April 9, 2018. REUTERS/Peter Nicholls

Morton, 68, who divides his time between Pasadena, California and London, explores Diana’s relationship with her mother-in-lawQueen Elizabethin a new book capturing and celebrating the late monarch’s extraordinary reign,The Queen: Her Life.It is excerpted in this week’s issue of PEOPLE, out Friday.

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The Queen: Her Life by Andrew Morton November 2022 release

For more on Andrew Morton’s book onQueen ElizabethandThe Crown, pick up a copy of the latest issue of PEOPLE on newsstands Friday.

source: people.com