Question: The director of Back to the Future directed another movie in 1994 which was based on a book. Who was the author of the book?

full_context: Document 1: The Great Santini: The Great Santini is a 1979 American drama film written and directed by Lewis John Carlino, based on the 1976 novel of the same name by Pat Conroy. The film stars Robert Duvall, Blythe Danner, and Michael O'Keefe, and tells the story of a U.S. Marine Corps officer whose success as an F-4 Phantom military aviator contrasts with his shortcomings as a husband and father. Set in 1962, before widespread American involvement in the Vietnam War, the plot explores the high price of heroism and self-sacrifice.
Document 2: Robert Benton: Robert Douglas Benton (born September 29, 1932) is an American screenwriter and film director. He won the Oscars for Best Adapted Screenplay and Best Director for "Kramer vs. Kramer" (1979) and won a third Oscar for Best Original Screenplay for "Places in the Heart" (1984).
Document 3: Rick Carter: Rick Carter (born 1950) is an American production designer and art director. He is known for his work in the film "Forrest Gump", which earned him an Oscar nomination, as well as numerous nominations of other awards for his work in "Amistad" and "A.I. Artificial Intelligence". Other films include "Cast Away", "War of the Worlds", "What Lies Beneath", "Jurassic Park", "Avatar", and "Back to the Future Part II" and "Part III". Many of the films that he has worked on are directed by Steven Spielberg or Robert Zemeckis. For his part in the Art Direction of "Avatar", he was awarded the Academy Award for Best Production Design alongside Robert Stromberg and Kim Sinclair. In 2013, Carter won his second Academy Award, for production design on Steven Spielberg's biopic, "Lincoln".
Document 4: Legends of the Fall: Legends of the Fall is a 1994 American epic drama film directed by Edward Zwick and starring Brad Pitt, Anthony Hopkins, Aidan Quinn, Julia Ormond and Henry Thomas. Based on the 1979 novella of the same title by Jim Harrison, the film is about three brothers and their father living in the wilderness and plains of Montana in the early 20th century and how their lives are affected by nature, history, war and love. The film's time frame spans from World War I through the Prohibition era, ending with a brief scene set in 1963. The film was nominated for three Academy Awards and won for Best Cinematography (John Toll). Both the film and book contain occasional Cornish language terms, the Ludlows being a Cornish emigrant family.
Document 5: The Notebook: The Notebook is a 2004 American romantic drama film directed by Nick Cassavetes and based on the 1996 novel of the same name by Nicholas Sparks. The film stars Ryan Gosling and Rachel McAdams as a young couple who fall in love in the 1940s. Their story is narrated from the present day by an elderly man (portrayed by James Garner) telling the tale to a fellow nursing home resident (played by Gena Rowlands, who is Cassavetes's mother).
Document 6: Robert Skotak: Robert Skotak (born May 17, 1945) is an American film director, producer, artist, actor, film editor. He has won two Academy Awards, both for Best Visual Effects. The first was in 1987 for "Aliens", while the second was in 1992 for "".
Document 7: Robert Zemeckis: Robert Lee Zemeckis (born May 14, 1952) is an American filmmaker and screenwriter frequently credited as an innovator in visual effects. Credited as "one of the greatest visual storytellers in filmmaking", he first came to public attention in the 1980s as the director of "Romancing the Stone" (1984) and the science-fiction comedy "Back to the Future" film trilogy, as well as the live-action/animated comedy "Who Framed Roger Rabbit" (1988). In the 1990s he diversified into more dramatic fare, including 1994's "Forrest Gump", for which he won an Academy Award for Best Director. The film itself won Best Picture. The movies he has directed have ranged across a wide variety of genres, for both adults and families.
Document 8: James Cameron: James Francis Cameron (born August 16, 1954) is a Canadian filmmaker, director, producer, screenwriter, inventor, engineer, philanthropist, and deep-sea explorer. After working in special effects, he found major success after directing and writing the science fiction action film "The Terminator" (1984). He then became a popular Hollywood director and was hired to write and direct "Aliens" (1986); three years later he followed up with "The Abyss" (1989). He found further critical acclaim for his use of special effects in "" (1991). After his film "True Lies" (1994) Cameron took on his biggest film at the time, "Titanic" (1997), which earned him Academy Awards for Best Picture, Best Director and Best Film Editing.
Document 9: Steven Spielberg: Steven Allan Spielberg, {'1': ", '2': ", '3': 'KBE', '4': "} , {'1': ", '2': ", '3': 'OMRI', '4': "} (born December 18, 1946) is an American director, producer, and screenwriter. He is considered one of the founding pioneers of the New Hollywood era, as well as being viewed as one of the most popular directors and producers in film history. He is also one of the co-founders of DreamWorks Studios.
Document 10: North (1994 film): North is a 1994 American comedy drama adventure film directed by Rob Reiner and starring an ensemble cast including Elijah Wood, Jon Lovitz, Jason Alexander, Alan Arkin, Dan Aykroyd, Kathy Bates, Faith Ford, Graham Greene, Julia Louis-Dreyfus, Reba McEntire, John Ritter, and Abe Vigoda, with cameos by Bruce Willis and a 9-year-old Scarlett Johansson (in her film debut). It was shot in Hawaii, Alaska, California, South Dakota, New Jersey, and New York. The story is based on the novel "North: The Tale of a 9-Year-Old Boy Who Becomes a Free Agent and Travels the World in Search of the Perfect Parents" by Alan Zweibel, who wrote the screenplay and has a minor role in the film.
Document 11: Forrest Gump: Forrest Gump is a 1994 American comedy-drama film based on the 1986 novel of the same name by Winston Groom. The film was directed by Robert Zemeckis and stars Tom Hanks, Robin Wright, Gary Sinise, Mykelti Williamson, and Sally Field. The story depicts several decades in the life of Forrest Gump, a slow-witted but kind-hearted, good-natured and athletically prodigious man from Alabama, who witnesses, and in some cases influences, some of the defining events of the latter half of the 20th century in the United States; more specifically, the period between Forrest's birth in 1944 and 1982. The film differs substantially from Winston Groom's novel, including Gump's personality and several events that were depicted.
Document 12: The War (1994 film): The War is a 1994 drama film directed by Jon Avnet and starring Elijah Wood, Kevin Costner, and Mare Winningham. It is a coming of age tale set in Mississippi in the 1970s. The film gained Wood a young actor's award.
Document 13: Fried Green Tomatoes: Fried Green Tomatoes is a 1991 comedy-drama film based on the novel "Fried Green Tomatoes at the Whistle Stop Cafe" by Fannie Flagg. Directed by Jon Avnet and written by Flagg and Carol Sobieski, it stars Kathy Bates, Jessica Tandy, Mary Stuart Masterson, and Mary-Louise Parker. It tells the story of a Depression-era friendship between two women, Ruth and Idgie, and a 1980s friendship between Evelyn, a middle-aged housewife, and Ninny, an elderly woman. The centerpiece and parallel story concerns the murder of Ruth's abusive husband, Frank, and the accusations that follow. It received a generally positive reception from film critics and was nominated for two Academy Awards.
Document 14: Born on the Fourth of July: Born on the Fourth of July, published in 1976, is the best-selling autobiography by Ron Kovic, a paralyzed Vietnam War veteran who became an anti-war activist. Kovic was born on July 4, 1946, and his book's ironic title echoed a famous line from George M. Cohan's patriotic 1904 song, "The Yankee Doodle Boy" (also known as "Yankee Doodle Dandy"). The book was adapted into a 1989 Academy Award winning film of the same name co-written by Oliver Stone and Ron Kovic, starring Tom Cruise as Kovic.
Document 15: Who Framed Roger Rabbit: Who Framed Roger Rabbit is a 1988 American live-action/animated fantasy film directed by Robert Zemeckis, produced by Frank Marshall and Robert Watts, and written by Jeffrey Price and Peter S. Seaman. The film is based on Gary K. Wolf's 1981 novel "Who Censored Roger Rabbit?" The film stars Bob Hoskins, Christopher Lloyd, Charles Fleischer, Stubby Kaye, and Joanna Cassidy. Combining live-action and animation, the film is set in Hollywood during the late 1940s, where animated characters and people co-exist. The story follows Eddie Valiant, a private detective who must exonerate "Toon" Roger Rabbit, who is accused of murdering a wealthy businessman.
ground_truth: Winston Groom