The 1971 film "Santa Claus Is Comin' to Town" tells the fictionalized story of how Clement C. Moore came to write "A Visit from St. Nicholas" after his young daughter, who was ill with pneumonia, requested a Santa Claus story for Christmas.
The Night Before Christmas
A young girl, battling pneumonia, requests a Christmas tale from her father, Clement C. Moore, which inspires him to pen "A Visit from St. Nicholas", a beloved holiday story that has stood the test of time.