Examining how and why the interview, which stunned the nation and threw the monarchy into a constitutional crisis, took place at all, as those who were there describe what happened in the room when the interview was recorded. It's been alleged that the reporter who delivered the scoop of the century, Martin Bashir, won the trust of the Princess through his use of fake documents, something the BBC has denied.
The documentary takes a detailed look at the disappearance of 3-year-old Madeleine McCann, who vanished while on holiday with her family.
Kelvin Calder MacKenzie is an English media executive and a former newspaper editor. Best known for being editor of The Sun from 1981, the publication was by then established as the Britain's largest circulation newspaper. There he was responsible for smearing the 96 dead at Hillsborough.