My all time favorite is "It's a Wonferful Life". Second is the 1970 "Scrooge" with Albert Finney.
A Christmas Carol (George C. Scott) and Jean Shepherd's A Christmas Story.
I have a small daughter, and we have already started to browse interesting films with the whole family. The daughter watched these films for the first time, and for me these are films of childhood.
1. "Jumanji" film 1995
2. "The Chronicles of Narnia"
3. "Harry Potter" all parts
The one movie I make it a point to watch every year is A Christmas Story from 1983. I've seen it a hundred times, but I still enjoy it every time. In fact, I just watched an interesting, if not amateurish, documentary (Roadtrip for Ralphie) about it on Kanopy. Of course, any Christmas Carol movie from the classic versions to Donald Duck's and then there's also Scooged with Bill Murray. I don't go in for the so-called Christmas movies like Die Hard that just so happen to take place at Christmas, but to each his own. I prefer the classics and I have no problem watching something in black and white. Christmas Vacation also gets my vote.