Secret Princess Diana Tapes to Air
02/13/2004 AT 11:16 AM EST
The audiotapes were secretly made at Kensington Palace in 1991, and served as the basis for Andrew Morton's 1992 best-selling book, "Diana: Her True Story." That book peeled away the façade of Charles and Diana's marriage, and started the couple down a path that would lead to their divorce in 1996. Diana was killed in a car crash in Paris in 1997.
On the audiotapes, Diana answers Morton's questions posed by an intermediary of the author's, Reuters reports. She addresses such issues as her suicide attempts, battle with bulimia, relationship the Royal family and Charles's infidelity. It was not until after Diana's death that Morton admitted the princess had assisted him in gathering information for his book.
The videotape, on the other hand, was shot more than a year after the audio, following the release of Morton's book. The Royal couple's marriage was already unraveling, but in the tapes Diana is reported to be relaxed and honest. A statement by NBC says that in the videos Diana illustrates "the lighter side of a woman who maintained a very reserved public persona," Reuters reports.
The documentary -- which will air over two nights, March 4 and March 11 -- will also feature footage of interviews with friends and confidants of the late princess, the network says.