Question: Which film is based on a Neil Gaiman novel, The Princess and the Frog or Coraline?
Context: Neverwhere is the companion novelisation written by English author Neil Gaiman of the television serial "Neverwhere", by Gaiman and Lenny Henry.  The plot and characters are exactly the same as in the series, with the exception that the novel form allowed Gaiman to expand and elaborate on certain elements of the story and restore changes made in the televised version from his original plans.  Most notable is the appearance of the Floating Market at Harrods (in the novel) rather than under Battersea power station (the TV series).  This is because the management of Harrods changed their minds about proposed filming.  The novel was originally released by BBC Books in 1996, three episodes into the television series run.  It was accompanied by a spoken word CD and cassette release, also by the BBC.  The novel enjoyed great success, whereas its television roots did not receive as much international exposure as the novel.  In addition to being translated into various languages, it was also re-published as an 'Author's Preferred Text' version, (a combination of the international and original English version, with additional scenes re-inserted by Gaiman) alongside "American Gods" in 2006.  The original BBC Books version had a cover by longtime Gaiman collaborator Dave McKean, taken from the birds head rings, flaming fist and London Underground styled graphics created by McKean for the series, as well as a brief section by Gaiman on the making of the series. Stardust is a 2007 film adaptation of the 1999 Neil Gaiman novel of the same name, "Stardust".  The romantic fantasy adventure film was directed by Matthew Vaughn and co-written by Vaughn and Jane Goldman.  The film features an ensemble cast led by Claire Danes, Charlie Cox, Sienna Miller, Jason Flemyng, Mark Strong, Rupert Everett, Ricky Gervais, Robert De Niro, Michelle Pfeiffer and Peter O’Toole, with narration by Ian McKellen. The Princess and the Frog is a 2009 American animated musical film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  The 49th Disney animated feature film, the film is loosely based on the novel "The Frog Princess" by E. D. Baker, which is in turn based on the Brothers Grimm fairy tale "The Frog Prince".  Written and directed by Ron Clements and John Musker, the film features an ensemble voice cast that stars Anika Noni Rose, Bruno Campos, Keith David, Michael-Leon Wooley, Jennifer Cody, and Jim Cummings, with Peter Bartlett, Jenifer Lewis, Oprah Winfrey, Terrence Howard, and John Goodman.  Set in 1920s New Orleans, the film tells the story of a hardworking waitress named Tiana who dreams of owning her own restaurant.  After kissing a prince who has been turned into a frog by an evil voodoo sorcerer, Tiana becomes a frog herself and must find a way to turn back into a human before it is too late. The Flash Girls are a now defunct folk music duo based out of Minneapolis, Minnesota. .  The duo consisted of Emma Bull, a noted science fiction author, and Lorraine Garland, also known as "The Fabulous Lorraine".  Garland is also notable as Neil Gaiman's personal assistant; the group formed at a Guy Fawkes Day party at Gaiman's home.  The connections that both Bull and Garland had with the science fiction and fantasy communities allowed them to have an unusually notable group of people writing songs for and with them, including Jane Yolen, Alan Moore, and Neil Gaiman.  These songs are mixed in with their own original works, traditional songs such as Star of the County Down and Lily of the West, as well as poems put to music, including works by Dorothy Parker and A.A. Milne. Coraline is a 2009 American 3D dark fantasy stop-motion horror film based on Neil Gaiman's 2002 novel of the same name.  It was the first feature film produced by Laika and distributed by Focus Features.  The film depicts an adventurous girl finding an idealized parallel world behind a secret door in her new home, unaware that the alternate world contains a dark and sinister secret.  Written and directed by Henry Selick, the film was made with Gaiman's approval and cooperation. Beldam, an archaic word meaning "hag" or "witch", may also refer to an old woman, particularly a shrewd, ugly one.  The word has entered popular usage due to the character of the Beldam, the main antagonist of Neil Gaiman's dark fantasy novella "Coraline" and its subsequent film adaption. Neverwhere is an urban fantasy television series by Neil Gaiman that first aired in 1996 on BBC Two.  The series is set in "London Below", a magical realm coexisting with the more familiar London, referred to as "London Above".  It was devised by Neil Gaiman and Lenny Henry, and directed by Dewi Humphreys.  Gaiman adapted the series into a novel, which was released in September 1996.  The series and book were partially inspired by Gene Wolfe's novel "Free Live Free". Coraline is a dark fantasy children's novella by British author Neil Gaiman, published in 2002 by Bloomsbury and Harper Collins.  It was awarded the 2003 Hugo Award for Best Novella, the 2003 Nebula Award for Best Novella, and the 2002 Bram Stoker Award for Best Work for Young Readers.  It has been compared to Lewis Carroll's "Alice's Adventures in Wonderland" and was adapted into a 2009 stop-motion film directed by Henry Selick. A Walking Tour of the Shambles (Little Walks For Sightseers #16) (2002), written by Neil Gaiman and Gene Wolfe, is a novel in the form of a tour guide concerning a fictional part of Chicago called 'The Shambles'.  It guides the reader through such non-existent landmarks as The House of Clocks (see the official website), Cereal House (home of the Terribly Strange Bed), and Gavagan's Irish Saloon.  A collaboration between Neil Gaiman and Gene Wolfe (cover by Gahan Wilson, with interior illustrations by Randy Broecker and Earl Geier), it was published with two different covers by the American Fantasy Press (one crediting "Gaiman and Wolfe", the other crediting "Wolfe and Gaiman". Coraline is a musical written by Stephin Merritt and David Greenspan and is based on the novella "Coraline" by Neil Gaiman.  It follows a young girl who is bored in her new house, and finds a new universe.
Answer: Coraline