In 1978, Affirmed ran his way into the history books at the Belmont Stakes, winning the last Triple Crown of horse racing. Thirty years later, Big Brown will try to match that rare achievement by winning his third major race this year. Horses have been a part of pop culture since the dawn of film. From Black Beauty to National Velvet to Seabiscuit, we have loved to love our horses. Here are the best seven movie quotes about a horse.