The former BBC producer who set up Prince Andrew's Newsnight interview says she thinks he agreed to do it because he was 'surrounded by people telling him he was amazing'.
Sam McAlister says the Duke of York had 'never been knocked back' and 'never had an appraisal' in the lead up to the now infamous piece of television, something that counted against him.
The Duke of York had been confronted by presenter Emily Maitlis about his links to paedophile financier Jeffrey Epstein, with the prince being ridiculed in the media and online for his answers to some of her questions.
Speaking ahead of the release of Scoop, a new Netflix drama about the interview in which she is portrayed by Billie Piper, Ms McAlister said while Andrew was 'eminently noticeable', the then 59-year-old had a 'real misperception of his abilities'.
The film, which will be released on April 5, dramatises the behind the scenes action in the build up to the interview, as well as fallout from the hour of television that essentially put an end to Andrew's time as a working member of the Royal Family.
Former BBC producer Sam McAlister says she felt Prince Andrew was surrounded by 'people telling him he was amazing' before his Newsnight interview. Pictured: Sam McAlister on Lorraine on Thursday, March 28
Ms McAlister is being portrayed by Billie Piper in the new Netflix film, Scoop, which dramatises the lead up to the interview and the fallout. Pictured: Billie Piper as Sam McAlister in Scoop
In the movie, which is being released on April 5, Prince Andrew is being played by Rufus Sewell. Pictured: Rufus Sewell as Prince Andrew in Scoop
Speaking to The Guardian, Ms McAlister said the prince - who turned up to the interview with Princess Beatrice for company - genuinely felt it had gone well after it finished.
She said she felt things might have gone differently if Andrew had more people holding him accountable.
'He cocked it up to the degree that he did for a very simple reason, one that's writ large in lots of powerful people in lots of powerful organisations,' she told the paper.
'At the top, you're surrounded by people telling you that you're amazing, and this is a very extreme example of that.
'He was 59. He'd never had a normal job. He'd never had an appraisal. He'd never been knocked back.
'My feeling was that through an accident of his birth he had a real misperception of his abilities.'
She added she thought Andrew was 'profoundly sad... he doesn't have the life he used to' following the fallout of the interview - since then he has been stripped of his military titles and peerages, and essentially retired from royal duties.
In the movie Andrew is portrayed by Rufus Sewell, who Ms McAlister says shares the same 'energy' and 'charisma that fills the room' as the Duke of York.
Rufus also admitted that when he was faced with the potential backlash from starring as the prince (pictured in 2019), he thought 'F*** it, I'm not gonna get a knighthood anyway'
Gillian Anderson will play BBC Newsnight presenter Emily Maitlis in the film. Pictured: Emily Maitlis with a whippet dog, Billie Piper as Sam McAlister and Romola Garai as Esme Wren in Scoop
Rufus Sewell (pictured left in Scoop) plays The Duke Of York (pictured right in the actual interview)
Gillian Anderson (pictured left in Scoop) stars as Emily Maitlis (pictured right in the actual interview)
Opposite Sewell in the chair will be Gillian Anderson, who portrays BBC presenter Emily Maitlis, while Keeley Hawes plays Andrew's former private secretary Amanda Thirsk.
Ms McAlister herself is being portrayed by Billie Piper, who felt her character was an 'unsung hero' in the very public fallout of the interview.
Piper also said her experience of fame gave her an insight into how Andrew's mindset, as when you are a public figure people are 'either disproportionately horrible, or disproportionately kind'.
Ms McAllister previously appeared on This Morning to discuss her experience working on both the interview and the film.
She described how tough it was securing the interview, saying: 'I was a complete underdog on booking content because who in their right mind, let's be frank, would want to go on unless you're a minister, or you're selling a book or a movie.
Billie Piper (pictured left in Scoop) plays the producer Sam McAlister (pictured right on Lorraine)
Keeley Hawes (pictured left in Scoop) stars as Prince Andrew's former personal secretary Amanda Thirsk (pictured right at the RHS Chelsea flower show)
'Why would you go and take that risk, right?
'So my job was persuading people to go on against their interest basically. So I spent my time trying to get them to do something they probably shouldn't have done.'
Discussing how she felt when securing the interview, she revealed: 'I'd been dealing with a palace for a year. And I think the thing that I love about this movie...is I'm an ordinary woman who ended up in an extraordinary situation. And of course, everyone's seen that interview. But this is the 95 per cent before that.'
She continued: 'So it all started a year prior, and it was only on the Monday so we're now 13 months in the Monday when I met Prince Andrew face to face with Emily and Stuart with with his daughter sitting next to him in Buckingham Palace...It was only then on the one day I thought this could actually happen.
'And on Tuesday morning, they said yes. And I honestly I dropped my phone. I could not believe that they had said yes.'
Describing the biggest curveball of the day, Sam told This Morning it was when Prince Andrew was accompanied into the interview with his daughter Princess Beatrice.
'Can you imagine you've gone to talk to a Prince and you're in Buckingham Palace... and you're talking about difficult subjects and then he brings his daughter?' she said?
'I mean, it was the curveball of curveballs. I'm not easily disconcerted, but I have to admit, even I was impressed by that as a curveball,' she added.
- Scoop is released on Netflix on April 5.