Which film is based on a Neil Gaiman novel, The Princess and the Frog or Coraline?
The Princess and the Frog:  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". Coraline (film): Coraline is a 2009 American 3D dark fantasy stop-motion horror film based on Neil Gaiman's 2002 novel of the same name.
Coraline