"[My wife Christine and I] both drive them to school in the morning when I'm here," Costner told ET at his California home last week. "This morning we're both in the car. We get their packs on and away they go. Chris is great about what to eat, because if it was up to me, they'd have chocolate. You know? They'd have what's simple. 'Put some ribs in there.' Chris goes, 'No, that's not how we're going to do it.'"
Every parent knows that young children are impossible to keep still, but with age comes wisdom. Whereas a younger parent might chase after their children when they run around, Costner uses bait to bring them back to him.
"You just say, 'I got a candy bar! Get over here!'" Costner joked. "You don't have to chase them very far when you talk about chocolate."
When he's not rounding up the little ones, the Oscar winner has been working on his illustrated novel, The Explorers Guild: Volume One: A Passage to Shambhala, with co-author Jon Baird. Costner praised his writing partner, saying that the book wouldn't have been made without him, but Baird gave Costner credit as well.
"Most people would assume that Kev would show up at the end, right? When it's coming off press make sure that his name's on there. That was not the deal at all," Baird told ET. "I mean, he was in there. He always made time for it, and he shaped it."