Other mistake: For the entire length of the movie, Bam Magera is referred to as Bam. But in the credits, his character's listed as Chad.
Other mistake: When Marcela and Howard are viewing Seabiscuit for the first time (when he's weaving all over the place) it looks like it was done before as Seabiscuit follows a thin ribbon of disturbed ground that is weaving in and out. Its unlikely any other horse would be weaving like that.
Other mistake: During the scene at the beginning of the movie where Taro Kitano and Vert Wheeler are racing around the desert, as Taro slides around the corner, his front wheel clips through his fender. (00:06:59)