Based on the remarkable true story, “Secretariat” chronicles the spectacular journey of the 1973 Triple Crown winner. Housewife and mother Penny Chenery (Diane Lane) 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 (John Malkovich)—manages to navigate the male-dominated business, ultimately fostering the first Triple Crown winner in 25 years and what may be the greatest racehorse of all time.