Diana: Her True Story Television film telling the story of Diana, Princess of Wales, based on the publication of the same name by Andrew Morton. Details Casts Title Diana: Her True Story Release Date 1993-04-03 Runtime 03 Hours 00 Minutes Genres TV Movie Drama Production Companies Unknown Production Countries United Kingdom, United States of America Serena Scott Thomas... Princess Diana... David Threlfall... Prince Charles... Donald Douglas... Prince Philip... Jemma Redgrave... Carolyn Bartholomew... Jeremy Child... Alfred Drake-Kinney... William Franklyn... Lord Mountbatten... Jean Anderson... Lady Fermoy... Anne Stallybrass... Queen Elizabeth... Belle Connor... Diana (6)... Tracy Hardwick... Sarah Ferguson... Aletta Lawson... Princess Anne... Gabrielle Blunt... The Queen Mother... Elizabeth Garvie... Camilla Parker-Bowles... David Janson... Michael... John Vine... Adrian...