Catching Fire was later released in ebook and audiobook format. "Catching Fire" received mostly positive reviews, with reviewers praising Collins' prose, the book's ending, and the development of Katniss's character. According to critics, major themes of the novel include survival, authoritarianism, rebellion and interdependence versus independence. The book has sold more than 19 million copies in the U.S. alone. A film adaptation, "", was released on November 22, 2013. After winning the 74th Hunger Games in the previous novel, Katniss Everdeen and Peeta Mellark return home to District 12, the poorest sector in the country of Panem. On the day that Katniss
Katniss Everdeen District 12. She agrees to be the Mocking Jay, symbol of the rebellion. A love triangle between Katniss, Peeta, and Gale slowly unfolds, forcing Katniss to decide whom she really wants to be with—a situation complicated by the fact that Peeta is currently being tortured in the Capitol while Gale is at Katniss's side. Katniss also forms a bond of friendship with Finnick, who goes through the same pain she is going through and is able to understand her situation. Katniss agrees to be the symbolic leader of their rebellion: "the Mockingjay", the face of the rebels. She discovers that