Continuity mistake: When Annie and Ray are laying in the newly completed ball field, and Annie is drinking a glass of wine, it is sunset. The sun has gone down and the sky is just the faintest of pink on the horizon, the rest of the sky is a strong blue tone. Yet, when the camera cuts to a long shot, same angle of Ray and Annie, the horizon is now a brilliant red-orange taking up nearly a third of the sky. (00:16:20)OneHappyHusky
Trivia: During the filming of the cornfield scenes where Ray first hears the voice, the filmmakers had problems with the corn growing. When they initially wanted to film the scenes the corn was too short, so they waited a couple of weeks. When they were ready to shoot, the corn was too tall. Kevin Costner had to walk on wooden planks, so he could be seen in the cornfield (Director Phil Alden Robinson discussed this in the 10th anniversary edition of the film).
Terence Mann: Ray, people will come Ray. They'll come to Iowa for reasons they can't even fathom. They'll turn up your driveway not knowing for sure why they're doing it. They'll arrive at your door as innocent as children, longing for the past. Of course, we won't mind if you look around, you'll say. It's only $20 per person. They'll pass over the money without even thinking about it: for it is money they have and peace they lack. And they'll walk out to the bleachers; sit in shirtsleeves on a perfect afternoon. They'll find they have reserved seats somewhere along one of the baselines, where they sat when they were children and cheered their heroes. And they'll watch the game and it'll be as if they dipped themselves in magic waters. The memories will be so thick they'll have to brush them away from their faces. People will come Ray. The one constant through all the years, Ray, has been baseball. America has rolled by like an army of steamrollers. It has been erased like a blackboard, rebuilt and erased again. But baseball has marked the time. This field, this game: it's a part of our past, Ray. It reminds of us of all that once was good and it could be again. Oh... People will come Ray. People will most definitely come.
The Voice: If you build it, he will come.