"Taglines:The Impossible True Story"
"Penny Chenery Tweedy and colleagues guide her long-shot but precocious stallion to set, in 1973, the unbeaten record for winning the Triple Crown."
"Housewife and mother Penny Chenery agrees to take over her ailing father's Virginia-based Meadow Stables, despite her lack of horse-racing knowledge. Against all odds, Chenery -- with the help of veteran trainer Lucien Laurin -- manages to navigate the male-dominated business, ultimately fostering the first Triple Crown winner in twenty-five years."
(Above taken from here).
It seemed a bit of a slow starter, but it gets a bit more active after a bit, and becomes a pretty good, quite emotional movie, I think.