Fantastic movie. Totally unlike the "usual" Scorsese movie, but right up there with any of his classics. Great film for kids, though I reckon they wouldn't understand the movie-history portions of the story.
"It breaks your heart. It is designed to break your heart. The game begins in the spring, when everything else begins again, and it blossoms in the summer, filling the afternoons and evenings, and then as soon as the chill rains come, it stops and leaves you to face the fall alone." --- Bart Giamatti, on baseball
Having owned horses for 30+ years, not necessarily. The third horse reared, fell backward and hit his/her head and had to be put down. You honestly never know how they will behave, they are unpredictable.