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
The Hunger Games (film) District 12, after her younger sister Primrose is chosen, Katniss Everdeen volunteers to take her place. She and fellow tribute Peeta Mellark are escorted to the Capitol by chaperone Effie Trinket and mentor Haymitch Abernathy, a past victor. Haymitch stresses the importance of gaining sponsors, as they can provide gifts during the Games. While training, Katniss observes the "Careers" (Marvel, Glimmer, Cato and Clove), volunteers from Districts 1 and 2 who have trained for the Games from an early age. During a televised interview with Caesar Flickerman, Peeta expresses his love for Katniss, which she initially sees as an attempt