question: Which American film was released in 2015, Maleficent or Monkey Kingdom?
answer: Monkey Kingdom
context: Title: Monkey Kingdom
  Passage: Monkey Kingdom is a 2015 American nature documentary film directed by Mark Linfield and Alastair Fothergill and narrated by Tina Fey.  The documentary is about a family of monkeys living in ancient ruins founded in the jungles of Polonnaruwa in Sri Lanka.  The film was released by Disneynature on April 17, 2015.
  Title: Kristin Bauer van Straten
  Passage: Kristin Bauer van Straten is an American film and television actress, perhaps best known for her roles as vampire Pamela Swynford De Beaufort on the HBO television series "True Blood", Jerry's girlfriend Gillian on "Seinfeld", and as sorceress Maleficent in the ABC series "Once Upon a Time".
  Title: Maleficent (film)
  Passage: Maleficent is a 2014 American dark fantasy film directed by Robert Stromberg from a screenplay by Linda Woolverton, and starring Angelina Jolie as the titular character with Sharlto Copley, Elle Fanning, Sam Riley, Imelda Staunton, Juno Temple, and Lesley Manville in supporting roles.  Loosely based on Charles Perrault's original fairy tale and inspired by Walt Disney's 1959 animated film "Sleeping Beauty", the film portrays the story from the perspective of the eponymous antagonist, depicting her conflicted relationship with the princess and king of a corrupt kingdom.
citations: Monkey Kingdom Maleficent (film)