The project, which aimed to commemorate the 30th anniversary of Diana, Princess of Wales's death, was reportedly considered by Prince William, the Prince of Wales, but he is believed to have declined the opportunity to make a film about his mother. This decision may have been influenced by his desire to avoid further conflict with his younger brother, Prince Harry. The project, which was thought to be in the hands of streaming giant Netflix, would have marked a significant public reflection on Diana's life and legacy. According to The Sunday Times, William, who was 15 when Diana died in 1997, is keen to avoid putting himself in a position of opposition to Harry. He is said to prefer a more private way of marking the upcoming anniversary, and he reportedly made his final public comments on the subject in 2017, during the 20th anniversary of her death. In contrast, Prince Harry is believed to have been approached for multiple projects related to his mother's legacy. The Duke of Sussex has a "first look" deal with Netflix, the same company that produced a six-part documentary series about him and his wife, Meghan, in 2022. The two brothers previously worked together on two documentaries for the 20th anniversary of Diana's death. In the ITV documentary Diana, Our Mother: Her Life and Legacy, William spoke about how his mother's legacy continues to influence him every day, while Harry described her death as unexpected as an "earthquake." In a 2024 ITV documentary, William also mentioned that he draws inspiration from Diana's work on homelessness and refers to her as "Granny Diana" when talking to his three children to keep her memory alive. This development follows the recent release of a memoir by Earl Spencer, Diana's brother, which included harsh criticisms of King Charles III. William reportedly received no prior notice about the book's publication, which claimed that the king had said, "we'll forget her soon enough" about Diana shortly after her death. Buckingham Palace strongly denied these allegations, stating that "fraternal grief can cloud reason, affect judgment, and colour memory." Earl Spencer told People Magazine that Harry was "completely fine" about the book but did not comment on William's reaction. The last time the two brothers appeared together in public to honor their mother was in 2021, when they unveiled a statue of Diana. This event followed Harry and Meghan's highly publicized interview with Oprah Winfrey, which sparked significant media attention and controversy.