Kevin Costner is ready to talk about his faith and the spiritual meaning behind Christmas in his new holiday special. "Well, it's the first Christmas, it's the birth of Christ ... I grew up in the church," the actor, 70, exclusively told Us Weekly of his upcoming ABC special, Kevin Costner Presents: The First Christmas, while attending the Art of Elysium Heaven Gala last month. "And so hopefully, whether you're a believer, or whether you're a cynic, or whether you're just curious about the real story behind the traditions of Christmas, I just invite people to journey back with me.