The Shamrock Handicap.

Because he refuses to collect rent payments from his impoverished tenants, kindly Irish nobleman Sir Miles Gaffney is in danger of losing his estate. He is forced to sell off part of his racing stable to a wealthy American, who takes along Gaffney's jockey Neil Ross as part of the bargain. When Neil is crippled in a racing accident, Sir Miles and his daughter Sheila sail to America with their prize horse "Dark Rosaleen" in tow. The first film having an Irish motif that John Ford directed, a six reel delight set in Eire's County Kildare and in the United States, with a steeplechase background, mixing charged elements of comedy and sentimental drama.