Naomi Watts has said that she was so worried about how Diana's sons would react to her portrayal of their mother in the forthcoming biopic that she twice turned down the role.
Naomi revealed: "The biggest reason that made me pause was how the princes were going to feel about this.
"There was actually quite an eerie moment in London when I did see Prince William in a restaurant, and I got very nervous, because if I caught his eye I didn't want to interpret a look and think he had a negative feeling about this idea, so I made sure not to look.
"I do care deeply about how the princes feel, of course. I am a mum of two boys. But it was a story that was bound to be told at some point, and it's possibly fresher than people expected."
Watts told the Sunday Times she had taken some convincing to sign up to do the movie, which has been dismissed as based on gossip by Hasnat Khan, the doctor on whose story it is based.
"I turned it down twice," she said. "I was a little bit torn, but once I'd said no, I wasn't completely at peace. Sometimes when you say no, you feel free, but it just wasn't the case.
"There was something very intriguing about this woman's life. It was extraordinary ... I liked the idea that there was this fame—no one at that level can really survive it, I think. It's a very dark thing, but it's kind of true."