Blue Grass of Kentucky (1950)

While Kentucky is known as 'the blue grass state', the use of the term in this title is the name of the horse. The story revolves around a colt born in Kentucky and named "Blue Grass", the training of the colt to win the Kentuck Derby, and how all of that affected the lives, fortunes, relationships, and romances of the people associated with the colt's race-track career.