Sure. 'A Christmas Memory' by Truman Capote. It has that nostalgic feel of Christmas and focuses on the relationship between characters during the holiday. It also has elements of kindness and the simple joys of the season like 'A Christmas Carol'.
Yes. There is the original written version by Charles Dickens which has a very specific language and narrative style. Then there are film adaptations which often have to make changes for the visual medium. Some might cut certain parts, add new scenes for drama, or change the pacing, making them different versions in their own right.