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 her district to hunt illegally and gather plants to eat, which was how her father had gotten most of the family's food before he died. There, she met a boy named Gale Hawthorne. Together, they provide for both their families and develop a strong friendship. Katniss's mother slowly surfaces from her depression and is able to return to her job as an apothecary, and Katniss makes an effort to forgive her. However, despite her mending relationship with her mother, strong friendship with Gale, and the increasingly strong affections she gains for Peeta, Katniss remains adamant that Prim, her younger sister,