One of the biggest stories in The Crown season 6 will involve Princess Diana and Dodi Fayed, but the show's creator, Peter Morgan, has already dramatized this chapter in royal history. Directed by Stephen Frears, 2006's The Queen focused on the discussions between Helen Mirren's Her Majesty Queen Elizabeth II and prime minister Tony Blair, played by Michael Sheen, in the immediate aftermath of the Paris car crash in which Princess Diana lost her life. The Queen was a forerunner to The Crown in many ways, particularly in how it focuses on the British Monarchy's struggle to remain relevant in changing times.
https://screenrant.com/crown-season-6-diana-death-story-queen-movie/