Trivia: The saddle worn by Seabiscuit for some of his races is, in fact, the same saddle worn by Phar Lap, who was Australia's, if not the world's, greatest racehorse ever. Billy Elliot, who rode Phar Lap to victory in the Agua Caliente (the world's richest horserace at the time), gave the saddle to George Woolf after Phar Lap died (under mysterious circumstances) in California.
Trivia: General Robert E. Lee was shown throughout the movie as wearing the three star insignia of a Colonel, rather than the three stars surrounded by a wreath as was the proper insignia for all Confederate generals. General Lee actually wore this throughout most if not all of the war, and this is accurate.