Filming begins this week in Louisiana and Kentucky on Secretariat, the story of the 1973 Triple-Crown-winning horse. Producers have rounded out the cast not a moment too soon by recently signing Dylan Walsh("Nip/Tuck"), John Malkovich and Scott Glenn according to The Hollywood Reporter. Also in the film is Diane Lane, who plays Secretariat's unlikely owner Penny Tweedy. Walsh steps in as Lane's successful attorney husband; Glenn plays a southern aristocrat who loses the horse in a coin flip; Malkovich is the trainer who underestimates the the horse's abilities.
At the helm is Randall Wallace working from a script written by Mike Rich.
All I know about the story of Secretariat comes from ESPN so this film could give some insight into the life of the famous equine and those who helped him along the way. I don't expect this film to be a 31-length winner, but it could place or show.
Source: Hollywoodreporter.com