Question: Which 2017 documentary film was commissioned in part by the royal who is currently fifth in line to the British throne?
Context: The Succession to the Crown Act 2013 (c. 20) is an Act of the Parliament of the United Kingdom.  It altered the laws of succession to the British throne in accordance with the 2011 Perth Agreement.  The act replaced male-preference primogeniture with absolute primogeniture for those born in the line of succession after 28 October 2011, which meant the eldest child regardless of gender would precede his or her siblings.  The act also ended the disqualification of a person who married a Roman Catholic from the line of succession, and removed the requirement of those outside the first six persons in line to the throne to seek the Sovereign's approval to marry.  It was brought into force on 26 March 2015, at the same time as the other Commonwealth realms implemented the Perth Agreement in their own laws. Countess Eloise of Oranje-Nassau, Jonkvrouwe van Amsberg (Eloise Beatrix Sophie Laurence; born 8 June 2002) is the first child and daughter of Prince Constantijn and Princess Laurentien of the Netherlands.  She is member of the Dutch Royal Family and currently fifth in the line of succession to the Dutch throne. The Force is a 2017 documentary film directed by Peter Nicks.  The documentary describes two years of efforts by the Oakland Police Department to implement reforms against police misconduct and scandals, at a time of growing social unrest, protests demanding increased police accountability, and ongoing federal oversight.  The film won the Documentary Directing Award at the 2017 Sundance Film Festival and a Golden Gate Award at the 2017 San Francisco International Film Festival. Buena Vista Social Club: Adios is a 2017 documentary film directed by Lucy Walker.  It is a follow up to the 1999 documentary "Buena Vista Social Club" about Cuban music.  The film was released in theaters on May 26, 2017. Prince Nikolas of Yugoslavia (born 15 March 1958) is a member of the House of Karadordevic.  Currently fourth in the line of succession to the defunct Yugoslavian throne, he is also in the line of succession to the British throne as a great-grandson of Princess Marie of Edinburgh, herself a granddaughter of Victoria of the United Kingdom. Gaga: Five Foot Two is a 2017 documentary film about American singer-songwriter Lady Gaga.  The film documents the events around the production and release of her fifth studio album, "Joanne", and her halftime performance at Super Bowl LI.  The film, directed by visual artist and documentarian Chris Moukarbel, made its debut at the 2017 Toronto International Film Festival before having a worldwide streaming release on Netflix on September 22, 2017. Prince Henry of Wales {'1': ", '2': ", '3': ", '4': "} (Henry Charles Albert David; born 15 September 1984), familiarly known as Prince Harry, is the younger son of Charles, Prince of Wales, and Diana, Princess of Wales.  At the time of his birth, he was third in line of succession to the British throne, after his father and elder brother, but is currently fifth in line after his father, his elder brother, and his nephew and niece, George and Charlotte. Diana, 7 Days is a 2017 documentary film which was broadcast in the United Kingdom by BBC on 27 August 2017.  The documentary is the last of two documentaries commissioned by Prince William and Prince Harry to commemorate the 20th anniversary of the death of their mother, Diana, Princess of Wales. Anne, Princess Royal, {'1': ", '2': ", '3': ", '4': "} (Anne Elizabeth Alice Louise; born 15 August 1950) is the second child and only daughter of Queen Elizabeth II and Prince Philip, Duke of Edinburgh.  At the time of her birth, she was third in the line of succession to the British throne, behind her mother – then Princess Elizabeth – and elder brother, Charles.  She rose to second after her mother's accession, but is currently 12th in line. Chasing Coral is a 2017 documentary film about a team of divers, scientists and photographers around the world who document the disappearance of coral reefs. "Chasing Coral" was produced by Exposure Labs and directed by Jeff Orlowski.  It premiered at the 2017 Sundance Film Festival and was released globally on Netflix as a Netflix Original Documentary in July 2017.
Answer: Diana, 7 Days