What's Your Favourite Christmas Movie?

Mine is "A Christmas Story" 1983 with Peter Billingsley as a young boy who wants a Red Ryder BB gun for Christmas. Its close to what my Christmases were like when I was that age in a land where there was snow on the ground all winter. I also like the ending and refer to it often when things get tense in my family at Christmas as they often do.

So what is your favourite Christmas movie?