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, Katniss's home, the coal-mining district. District 12, in the Appalachian Mountains, is the poorest of the districts, and Katniss lives with her mother and sister in the poorest part of town, known as the Seam. Katniss's father, a coal miner, was killed in a mine explosion when Katniss was 11. After his death, Katniss's mother went into a deep depression and was unable to take care of her children. On the brink of starvation a few weeks before her twelfth birthday Katniss wandered into the richer part of town, hoping to steal some scraps from the garbage bins