Morton wroteDiana: Her True Storyin secret collaboration with the princess.

Morton sent questions to Diana via her friend Dr. James Colthurst.

The princess then recorded answers to the author’s queries.

Andrew Morton

Andrew Morton was worried about being killed while writing Princess Diana biography.CHRIS J RATCLIFFE/AFP via Getty Images

In the interview with ET, Morton confirms the veracity of those scenes.

“James was knocked off his bicycle.

I found it to be a really rich experience and a real challenge as well.

Season 5 ofThe Crownis streaming now onNetflix.