In Miracle on 34th Street, actor John Payne, who played Fred Gailey, loved the movie so much that he actually wrote a sequel to the Christmas classic when he was older.
In Maureen O'Hara's autobiography, she said, "We talked about it for years, and he eventually even wrote a screenplay sequel. He was going to send it to me but tragically died before he could get around to it. I never saw it and have often wondered what happened to it."