Seabiscuit is a 2003 American sports film co-produced, written and directed by Gary Ross and based on the best-selling 1999 non-fiction book Seabiscuit: An American Legend by Laura Hillenbrand. The film is loosely based on the life and racing career of Seabiscuit, an undersized and overlooked Thoroughbred race horse, whose unexpected successes made him a hugely popular media sensation in the United States during the Great Depression. At the 76th Academy Awards, Seabiscuit received seven nominations, including Best Picture, but ultimately lost all seven, including six to The Lord of the Rings: The Return of the King.

Laura Hillenbrand is an American author of books and magazine articles. Her two bestselling nonfiction books, Seabiscuit: An American Legend (2001) and Unbroken: A World War II Story of Survival, Resilience, and Redemption (2010), have sold over 13 million copies, and each was adapted for film. Her writing style is distinct from New Journalism, dropping "verbal pyrotechnics" in favor of a stronger focus on the story itself.