Question: What is Trolls (2016 the  computer animated musical comedy by South Korean animator, Yong Duk Jhun about?

full_context: Document 1: Kung Fu Panda 3: Kung Fu Panda 3 is a 2016 3D computer-animated action-comedy martial arts film produced by DreamWorks Animation and distributed by 20th Century Fox. It is the third installment in the "Kung Fu Panda" franchise, and the sequel to 2011's "Kung Fu Panda 2". In the film, Po enters the panda village and re-unites with his birth father and other pandas, but problems arise when a villainous spirit warrior, named Kai, returns to the mortal realm and steals chi from the kung fu masters. To prevent Kai from taking chi from all kung fu masters and pandas, Po forms the army of pandas to battle Kai's jade minions and Po must become a master of chi to defeat him and save his friends.
Document 2: Yong Duk Jhun: Yong Duk Jhun (born 1971) is a South Korean cinematographer and animator. He is head of layout at DreamWorks Animation. He is best known for his work on "Kung Fu Panda" (2008), "Shrek Forever After" (2010) and "Trolls" (2016).
Document 3: Moana (2016 film): Moana ( ) is a 2016 American 3D computer-animated musical fantasy-adventure film produced by Walt Disney Animation Studios and released by Walt Disney Pictures. It is the 56th Disney animated feature film. Directed by Ron Clements and John Musker, co-directed by Don Hall and Chris Williams, the film introduces Auli'i Cravalho as Moana and features the voices of Dwayne Johnson, Rachel House, Temuera Morrison, Jemaine Clement, Nicole Scherzinger, and Alan Tudyk. The film features music written by Lin-Manuel Miranda, Opetaia Foa'i, and Mark Mancina.
Document 4: Kung Fu Panda (franchise): The "Kung Fu Panda" franchise from DreamWorks Animation consists of three films: "Kung Fu Panda" (2008), "Kung Fu Panda 2" (2011) and "Kung Fu Panda 3" (2016). The first two were distributed by Paramount Pictures, while the third film was distributed by 20th Century Fox. Three shorts, "Secrets of the Furious Five" (2008), "Kung Fu Panda Holiday Special" (2010) and "" (2011), were also released. A television series for Nickelodeon television network, "", premiered in the fall of 2011.
Document 5: What U Workin' With?: "What U Workin' With?" is a song recorded by American singers Gwen Stefani and Justin Timberlake for the official soundtrack to the 2016 film "Trolls". Timberlake co-wrote and co-produced the track with Max Martin and Ilya Salmanzadeh with additional writing from Savan Kotecha and Peter Svensson. The song was first announced on August 22, 2016, with Stefani's appearance being a secret. An urban and dance song, the lyrics talk about having a good time and standing out amongst a crowd.
Document 6: Storks (film): Storks is a 2016 American 3D computer-animated adventure buddy comedy film produced by Warner Animation Group, RatPac-Dune Entertainment and Stoller Global Solutions. It is directed by Nicholas Stoller and Doug Sweetland (in his feature debut), written by Stoller and stars the voices of Andy Samberg, Katie Crown, Kelsey Grammer, Jennifer Aniston, Ty Burrell, Keegan-Michael Key, Jordan Peele, and Danny Trejo.
Document 7: The Angry Birds Movie: The Angry Birds Movie (or simply Angry Birds) is a 2016 3D computer-animated comedy film based on the video game series of the same name, but it can also be interpreted to be a direct prequel to, or origin story behind the original game. Produced by Rovio Animation, it was animated by Sony Pictures Imageworks. It was directed by Clay Kaytis and Fergal Reilly in their directorial debuts, and written by Jon Vitti. The film stars Jason Sudeikis, Josh Gad, Danny McBride, Maya Rudolph, Kate McKinnon, Sean Penn, Tony Hale, Keegan-Michael Key, Bill Hader and Peter Dinklage. It is an international co-production between the United States and Finland.
Document 8: Kung Fu Panda: Kung Fu Panda is a 2008 American computer-animated action comedy martial arts film produced by DreamWorks Animation and distributed by Paramount Pictures. It was directed by John Stevenson and Mark Osborne and produced by Melissa Cobb, and stars the voices of Jack Black, Dustin Hoffman, Angelina Jolie, Ian McShane, Seth Rogen, Lucy Liu, David Cross, Randall Duk Kim, James Hong, and Jackie Chan. Set in a version of ancient China populated by anthropomorphic talking animals, the plot revolves around a bumbling panda named Po who aspires to be a kung fu master. When an evil kung fu warrior is foretold to escape after twenty years in prison, Po is unwittingly named the chosen one destined to defeat him and bring peace to the land, much to the chagrin of the resident kung fu warriors.
Document 9: Hou Yong (cinematographer): Hou Yong (; born 1960) is a Chinese filmmaker and cinematographer. He is perhaps best known for his collaboration with director Zhang Yimou, though he has worked with many of China's major directors. Like some of Zhang's other cinematographers (notably Lü Yue, whom Hou replaced), Hou has also moved into the directing world. In 2004, he directed "Jasmine Women" starring Zhang Ziyi.
Document 10: Trolls (film): Trolls is a 2016 American 3D computer-animated musical comedy film based on the Troll dolls created by Thomas Dam. The film was directed by Mike Mitchell and co-directed by Walt Dohrn, written by Jonathan Aibel and Glenn Berger and based on a story by Erica Rivinoja. The film features the voices of Anna Kendrick, Justin Timberlake, Zooey Deschanel, Russell Brand, James Corden and Gwen Stefani. The film revolves around two trolls on a quest to save their village from destruction by the Bergens, creatures who eat trolls.
Document 11: Jennifer Yuh Nelson: Jennifer Yuh Nelson, also known as Jennifer Yuh (born May 7, 1972), is an American director and storyboard artist. She is best known for her directorial debut "Kung Fu Panda 2". Yuh is the first woman to solely direct an animated feature from a major Hollywood studio.
Document 12: DreamWorks Animation: DreamWorks Animation SKG, Inc. (more commonly known as DreamWorks Animation, or simply DreamWorks) is an American animation studio that is a subsidiary of Universal Studios, a division of NBCUniversal, itself a division of Comcast. It is based in Glendale, California and produces animated feature films, television programs and online virtual games. The studio has currently released a total of 35 feature films, including the franchises "Shrek", "Madagascar", "Kung Fu Panda" and "How to Train Your Dragon". Originally formed under the banner of its main DreamWorks studio in 1997 by some of Amblin Entertainment's former animation branch Amblimation alumni, it was spun off into a separate public company in 2004. DreamWorks Animation currently maintains its Glendale campus, as well as satellite studios in India and China. On August 22, 2016, NBCUniversal acquired DreamWorks Animation for $3.8 billion, making it a division of the Universal Filmed Entertainment Group.
Document 13: Troll (film): Troll is a 1986 cult dark comedy fantasy film directed by John Carl Buechler and produced by Charles Band of Empire Pictures, starring Noah Hathaway, Michael Moriarty, Shelley Hack, Jenny Beck, and Sonny Bono. The film was shot in Italy in the Stabilimenti Cinematografici Pontini studios near Rome. It is unrelated to "Troll 2" and "Troll 3".
Document 14: Jin Kim (animator): Jin Kim (, Korean name: Kim Sang-jin) is a South Korean animator. He has been working as animator at the Walt Disney Animation Studios since 1995. He is also first Korean to be working for Walt Disney Animation Studios.
Document 15: Sing (2016 American film): Sing is a 2016 American 3D computer-animated musical comedy film produced by Illumination Entertainment. It was directed and written by Garth Jennings, co-directed by Christophe Lourdelet, and starring the voices of Matthew McConaughey, Reese Witherspoon, Seth MacFarlane, Scarlett Johansson, John C. Reilly, Taron Egerton, and Tori Kelly. The film is about a group of anthropomorphic animals that enter a singing competition, hosted by a koala hoping to save his theater.
ground_truth: two trolls on a quest to save their village from destruction by the Bergens, creatures who eat trolls.