 I wasn't able to make it, but I didn't really fall out of love with the idea. And now he's brought that idea to fruition, and it's not about a person, it's about a town. Why do all the Westerns have a town, and we don't know how it came to be? Horizon, an American saga, attempts to tell that story. Costner stars in the film, which he also co-wrote, produced, and directed. And similar to some of his past projects, he has put a lot of his own money into Horizon, which he intends to release in four parts.