Question: What short story is a 2008 American science fiction film with the screenwriter who's most famous work is the screenplay for the film "The Last Castle" based off of ?

Context paragraphs:
The Day the Earth Stood Still: The Day the Earth Stood Still (a.k.a. Farewell to the Master and Journey to the World) is a 1951 black-and-white American science fiction film from 20th Century Fox, produced by Julian Blaustein, directed by Robert Wise, that stars Michael Rennie, Patricia Neal, Billy Gray, Hugh Marlowe, and Sam Jaffe.  The screenplay was written by Edmund H. North, based on the 1940 science fiction short story "Farewell to the Master" by Harry Bates.  The score was composed by Bernard Herrmann.

Cassandra (short story): "Cassandra" is a science fiction short story by American science fiction and fantasy author C. J. Cherryh.  It was first published in "The Magazine of Fantasy & Science Fiction" in October 1978, and won the Hugo Award for Best Short Story in 1979.  It was only her second published short story, after "The Dark King" (1977).

Invaders from Mars (1986 film): Invaders from Mars is a 1986 science fiction horror film, directed by Tobe Hooper from a screenplay by Dan O'Bannon and Don Jakoby.  It is a remake of the 1953 science fiction film "Invaders from Mars", and is a reworking of that film's screenplay by Richard Blake from an original story by John Tucker Battle.  Its production was instigated by Wade Williams, millionaire exhibitor, science fiction film fan and sometime writer-producer-director, who had reissued the original film in 1978 after purchasing the copyright to the property.  Elaborate creature and visual effects for this remake were supplied by Stan Winston and John Dykstra.

Nebula Award for Best Short Story: The Nebula Award for Best Short Story is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy short stories.  A work of fiction is defined by the organization as a short story if it is less than 7,500 words; awards are also given out for longer works in the categories of novel, novella, and novelette.  To be eligible for Nebula Award consideration a short story must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Short Story has been awarded annually since 1966.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

David Scarpa: David Scarpa is an American screenwriter.  He was born in Fort Campbell, Kentucky, and raised in Tennessee and Connecticut before attending New York University's Film Program.  His most famous works are the screenplays for films such as "The Last Castle" and the 2008 remake of "The Day the Earth Stood Still".  All the Money in the World, about the John Paul Getty, III kidnapping, will be released in December, 2017.

The Day the Earth Stood Still (2008 film): The Day the Earth Stood Still is a 2008 American science fiction film, a loose adaptation of the 1951 film of the same name.  The screenplay by David Scarpa is based on the 1940 classic science fiction short story "Farewell to the Master" by Harry Bates and on the 1951 screenplay adaptation by Edmund H. North.

Nebula Award for Best Novel: The Nebula Award for Best Novel is given each year by the Science Fiction and Fantasy Writers of America (SFWA) for science fiction or fantasy novels.  A work of fiction is defined by the organization as a novel if it is 40,000 words or longer; awards are also given out for pieces of shorter lengths in the categories of short story, novelette, and novella.  To be eligible for Nebula Award consideration a novel must be published in English in the United States.  Works published in English elsewhere in the world are also eligible provided they are released on either a website or in an electronic edition.  The Nebula Award for Best Novel has been awarded annually since 1966.  Novels which were expanded forms of previously published short stories are eligible, as are novellas published by themselves if the author requests them to be considered as a novel.  The award has been described as one of "the most important of the American science fiction awards" and "the science-fiction and fantasy equivalent" of the Emmy Awards.

The Little Black Bag: "The Little Black Bag" is a science fiction short story by American Cyril M. Kornbluth, first published in the July 1950 edition of "Astounding Science Fiction".  It is a predecessor of sorts to the story "The Marching Morons".  It won the 2001 Retroactive Hugo Award for Best Novelette (of 1951) and was also recognized as the 13th best all-time short science fiction story in a 1971 "Analog Science Fact & Fiction" poll, tied with "Microcosmic God" by Theodore Sturgeon.  It was among the stories selected in 1970 by the Science Fiction Writers of America as one of the best science fiction short stories published before the creation of the Nebula Awards.  As such, it was published in "The Science Fiction Hall of Fame Volume One, 1929-1964".

Gort (The Day the Earth Stood Still): Gort is a fictional humanoid robot that appeared first in the 1951 20th Century Fox American science fiction film "The Day the Earth Stood Still" and later in its 2008 remake.  His depiction varies between film adaptations, however, the original character was loosely based on the character Gnut, from "Farewell to the Master", a 1940 "Astounding Science Fiction" short story written by Harry Bates, used as the basis for Edmund H. North's screenplay.  In that story, Gnut is a moving green statue that is apparently attendant upon Klaatu, but in the terminus of the story is identified as the eponymous "master" over Klaatu.

The Dandelion Girl: "The Dandelion Girl" is a science fiction short story written by American science fiction author Robert F. Young.  The story, roughly 5,600 words, first appeared in "The Saturday Evening Post" on April 1, 1961.  The story was later republished in a Robert F. Young short story collection in 1965 called "The Worlds of Robert F Young: Sixteen Stories of Science Fiction and Fantasy".  The line "Day before yesterday I saw a rabbit, and yesterday a deer, and today, you."  from the story appears six times throughout the text and is the only full line that is repeated.  The story involves a middle-aged man named Mark Randolph who meets a girl half his age who claims to be from 240 years into the future.

Supporting paragraphs: The Day the Earth Stood Still (2008 film) David Scarpa
Answer: Farewell to the Master