Nicole Kidman

Context: In 2016, Kidman's performance in Lion earned rave reviews, as well as nominations for the Academy Award for Best Supporting Actress, her fourth nomination overall, the Critics Choice for Best Supporting Actress, the Screen Actors Guild for Outstanding Performance by a Female Actor in a Supporting Role, the BAFTA Award for Best Actress in a Supporting Role, a win in the same category at the Hollywood Film Awards as well as her third Golden Globe nomination for Best Supporting Actress, and her eleventh nomination overall. Kidman portrayed Sue Brierly, the adoptive mother of Saroo, an Indian boy who was separated from his birth family, a role she felt connected to as she herself is the mother of adopted children. Richard Roeper of The Chicago Sun-Times felt that "Kidman gives a powerful and moving performance as Saroo's adoptive mother, who loves her son with every molecule of her being but comes to understand his quest. It's as good as anything she's done in the last decade."  In 2017, Kidman returned to television in the seven-part miniseries adaptation of the Liane Moriarty bestseller Big Little Lies, which premiered on HBO. She produced the miniseries along with her co-star, Reese Witherspoon, and the show's director, Jean-Marc Vallee. She plays Celeste Wright, a former lawyer and housewife, who is concealing her abusive relationship with her younger husband, played by Alexander Skarsgard. Kidman has garnered critical acclaim for her performance, with Matthew Jacobs of The Huffington Post stating that she "delivered a career-defining performance." Ann Hornaday of The Washington Post wrote that "Kidman belongs in the pantheon of great actresses." She has received a nomination from the Television Critics Association and won the Primetime Emmy Award for Outstanding Lead Actress in a Limited Series or Movie for her performance, as well as winning the Primetime Emmy Award for Outstanding Limited Series as a producer. She went on to win a Golden Globe and SAG Award for her role.  She then played Martha Farnsworth, the headmistress of an all-girls school during the Civil War, in Sofia Coppola's drama The Beguiled, an adaptation of the novel written by Thomas P. Cullinan, which premiered at the 2017 Cannes Film Festival, competing for the Palme d'Or. The film received positive reviews, as did Kidman's performance, with Katie Walsh of Tribune News Service noting "Nicole Kidman is particularly, unsurprisingly excellent in her performance as the steely Miss Martha. She is controlled and in control, unflappable. Her genteel manners and femininity coexist easily with her toughness." Kidman had two other films premiere at the festival, the science-fiction romantic comedy How to Talk to Girls at Parties, reuniting her with director John Cameron Mitchell, and the psychological thriller The Killing of a Sacred Deer, directed by Yorgos Lanthimos, which also competed for the Palme d'Or. Also in 2017, Kidman played a supporting role in the television series Top of the Lake: China Girl. CANNOTANSWER

Question: What film earned Nicole Kidman the Primetime Emmy Award?
Answer: the seven-part miniseries adaptation of the Liane Moriarty bestseller Big Little Lies, which premiered on HBO.