Plot
The 1997 United Kingdom general election has Tony Blair and the Labour Party elected on a manifesto of reform and modernisation. Less than four months later, Diana, Princess of Wales is killed in a car crash at the Alma Bridge tunnel in Paris.
Immediately, her death presents problems for her former husband, Prince Charles, and the prime minister, Tony Blair, what to accord the mother of a future king who is no longer a member of the royal family. Queen Elizabeth II wonders if Blair will turn his modernisation pledge on to the royal family, since he attempts to have her reconsider her views on the funeral plans. Diana's family, the Spencers, calls for the funeral to be private.
Following a speech in which Blair describes Diana as the "People's Princess" and the adoption of the title by the press, an outpouring of grief by the general public begins in broadcasts and displays of floral tributes so numerous at Buckingham and Kensington Palaces that the main entrances onto the complexes have to be rerouted. The royal family's senior members make no effort to acknowledge Diana's significance to society as the Queen feels that she must comfort and shield her grandsons following the death of their mother, and so remains on holiday at Balmoral. The royal family's popularity plummets, while Blair's approval rises as he responds to the public outcry of the royal family's inaction.
Blair's attempts to guide the royal family through the controversy are met with resistance: the Queen describes them as a surrender to public hysteria. Despite the Queen and Prince Philip's shared indignation for any sympathy toward Diana or acknowledgment of the country's mourning, Blair is encouraged by the private secretaries of both the Prince of Wales and the Queen to continue with his attempts to change the attitude of the royal family. As Britain continues its outpouring of grief, Blair attempts to defend the royal family publicly, but his attempts are futile. Blair's compassion earns him overwhelming praise and adoration, while the royal family's seeming indifference earns them fiery condemnation from the people.
As Britain's outrage hits a critical mass, Blair cannot continue to finesse the Queen's refusal to acknowledge Diana and the public. He reveals to her that 70% of the country believes her actions are damaging to the monarchy and "1 in 4" people are in favour of abolishing the monarchy altogether. Blair adamantly insists that the royal family fly the flag at Buckingham Palace at half-mast, that the Queen pay her respects to Diana and give a public address consoling the country.
Although she is demoralised by the country's reaction and the prime minister's suggestions, the Queen comes to realise that the world has changed during her reign. She and Prince Philip return to London despite their disagreement. The Queen finally pays public tribute on live television to Diana's significance to the nation and society and can somewhat quell Britain's agony. The royal family attends the public funeral for Diana at Westminster Abbey.
At Blair's next meeting with the Queen, they exchange views about what has happened since their last meeting, including the controversy surrounding Diana's death and the actions that followed. Then she cautions the prime minister that, just as public opinion has changed about how the royal family should react to a new Britain, so must he as he may very well find himself in the same position of changing public opinion.