The Lemon Drop Kid and "the Home for Old Dolls." I did forget that movie until you mentioned it. I saw it a couple of times when I was a kid. I believe the story was originally a popular radio play. I love the song "Silver Bells."
The scene in the book where Bob goes upstairs to the body of Tiny Tim simply cannot be duplicated on film. That's one long read too.
If you want to read an excellent Christmas story for "older" kids, Dean Koontz "The Oddkins" will stand the test of time. Many years ago, my son brought it home from school for us to read. It was great.
Now, unless it has been reprinted, it is a very expensive book.