i know what you mean about father Christmas...felt the same way when reading the books.
but i sort of balanced it in my mind because it made it seem to me that lewis was interweaving both our mythology/fairy tales/legends with the fairyland that is narnia. more i thought about it, more i liked it. father Christmas is a tradition that transcends most cultures and, thus, creates a bridge between the two worlds.
so i don't mind it. i just wanted him to be seen as FATHER CHRISTMAS, rather than SANTA CLAUS, who has become a symbol of materialism lately, imo.
i can't believe i misspelled humorous in my last post. i must have been really tired.
I wonder if it was necessary, because in the original it was Mrs. Mac with a roomful of trippers . . . but that might have been harder to explain in a movie. In the book, Lewis notes that the children later couldn't explain their panic and thought that some magic in the house might have been chasing them into Narnia.