Princess Diana Biographer Andrew Morton Explains Their Tape Exchange in 'The Crown' (Exclusive)

Andrew Morton, author of 'The Queen: Her Life,' opens up to ET's Kevin Frazier about being a consultant on season 5 of 'The Crown.' Morton explains the differences between the dramatized portrayal and his real-life collaboration with Princess Diana, played by Elizabeth Debicki in the Netflix series. The late Princess of Wales provided Morton with tape recordings that contained intimate reflections about her childhood, life in the royal family and her marriage to then Prince Charles. Morton recalls always being on the lookout for 'danger in the shadows' amid their clandestine relationship.