Jockey reminds me a little of Seabiscuit. Both films tell a story of an aging rider and a once in a lifetime horse. Jockey adds a father - son or father -mentor plot to the mix. Clifton Collins Jr. brings worn out realism to the role of Jackson. Molly Parker adds depth as longtime friend and employer. Moises Arias fills out the story as the son Jackson may or may not have. Several scenes feel improvised adding realism.