When I was writing the script, I knew didn't want to make a sports movie. I was very clear that I wanted to make a sibling rivalry story. So when I was writing the script, the football was getting in the way of the drama. One day, I saw Michael Haneke's Funny Games, which is probably the most violent film I've ever seen - but the violence is off camera. When I finished watching the film, I said, 'Hey, that's what I have to do.' Haneke gave me this solution.