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A dystopia (lit. "bad place") is an imagined world or society in which people lead wretched, dehumanized, fearful lives. It is an imagined place (possibly state) in which everything is unpleasant or bad, typically a totalitarian or environmentally degraded one. Dystopia is widely seen as the opposite of utopia – a concept coined by Thomas More in 1516 to describe an ideal society.

Lionsgate Films, previously spelled as Lions Gate and formerly known as Cinépix Film Properties, is a Canadian-American film production and distribution company founded in Montreal, Quebec, Canada, on June 15, 1962. Headquartered in Santa Monica, California, it is owned by Lionsgate Studios since May 14, 2024. Lionsgate is the second-largest and most successful mini-major film studio in North America. The studio focuses on foreign and independent films and has distributed various commercially successful film franchises, including Saw, The Hunger Games, Rambo, Divergent, The Punisher, John Wick, Madea, Blair Witch, Now You See Me, Hostel, The Expendables, Sinister, The Twilight Saga, Step Up, and Den of Thieves.

Summit Entertainment, LLC (formerly the Summit Group, Summit Export Group, Summit Entertainment Group Inc., Summit Entertainment Limited, Summit Films Limited, and Summit Entertainment N.V.) is an American film production label of Lionsgate Films, owned by Lionsgate Studios and is headquartered in Santa Monica, California. It was founded on July 26, 1991.

Allegiant is a dystopian novel for young adults, written by the American author Veronica Roth and published by HarperCollins in October 2013. It completes the Divergent trilogy that Roth started with her debut novel Divergent in 2011. The book is written from the perspective of both Beatrice (Tris) and Tobias (Four). Following the revelations of the previous novel, they journey past the city's boundaries to discover what lies beyond.

Divergent is the debut novel of American novelist Veronica Roth, published by HarperCollins Children's Books in 2011. The first in the Divergent series, a trilogy of young adult dystopian novels, the novel is set in a post-apocalyptic Chicago, where society defines its citizens by their social and personality-related affiliation with one of five factions. This rigid system has removed the threat of anyone exercising independent will and re-threatening the population's safety. In the story, Beatrice Prior joins the ranks of the Dauntless faction and explores her new identity as "Tris". Underlying the action- and dystopian-focused main plot is a romantic subplot between Tris and "Four", one of her instructors in the Dauntless faction.

Four: A Divergent Collection is a collection of five short stories from the Divergent trilogy, told from Tobias Eaton's (Four) perspective, and written by Veronica Roth. The first story of the collection, Free Four: Tobias Tells the Divergent Knife-Throwing Scene, was released as an e-book on April 23, 2012. The second story, The Transfer, was released on September 3, 2013. The third story titled The Initiate, the fourth story The Son and the fifth and final story The Traitor were released on July 8, 2014. Simultaneously with the release of last three short stories, a collected edition of the five short stories titled Four: A Divergent Collection was released on July 8, 2014, which also features three exclusive scenes.

Insurgent is a 2012 dystopian young adult novel by American novelist Veronica Roth and the second book in the Divergent trilogy. As the sequel to the 2011 bestseller Divergent, it continues the story of Tris Prior and the dystopian post-apocalyptic version of Chicago. Following the events of the previous novel, a war now looms as conflict between the factions and their ideologies grows. While trying to save the people that she loves, Tris faces questions of grief, forgiveness, identity, loyalty, politics, and love.

Kate Elizabeth Winslet ( ; born 5 October 1975) is an English actress. Primarily known for her roles as headstrong and complicated women in independent films, particularly period dramas, she has received numerous accolades, including an Academy Award, two Primetime Emmy Awards, five BAFTA Awards and five Golden Globe Awards. She was appointed Commander of the Order of the British Empire (CBE) in 2012. Winslet studied drama at the Redroofs Theatre School.

Ansel Elgort (born March 14, 1994) is an American actor and singer. He began his acting career with a supporting role in the horror film Carrie (2013). He gained wider recognition for starring as a teenage cancer patient in the romantic drama film The Fault in Our Stars (2014) and for his supporting role in The Divergent Series (2014–2016). In 2017, Elgort played the title character in Edgar Wright's action thriller Baby Driver, for which he received a Golden Globe Award nomination for Best Actor in a Motion Picture – Musical or Comedy.

Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. Located on the western shore of Lake Michigan, it is the third-most populous city in the United States, with a population of 2.74 million at the 2020 census. The Chicago metropolitan area has 9.41 million residents and is the third-largest metropolitan area in the country. Chicago is the county seat of Cook County, the second-most populous county in the U.S.