I know we already have this thread somewhere - but I couldn't find it and I wanted to update my list. Here goes in no particular order:
Home Alone
Home Alone 2 - Lost in New York
The Family Stone
While You Were Sleeping
National Lampoon's Christmas Vacation
Prancer
The Nativity Story
Jack Frost
The Bells of St. Mary's
Unaccompanied Minors
Holiday Inn
March of the Wooden Soldiers
Jingle All the Way
Surviving Christmas
Fred Claus
A Christmas Story
Elf
The Christmas Blessing
The Christmas Card
Four Christmases
Deck the Halls
Planes, Trains, and ASutomobiles (really a Thanksgiving film)
Ernest Saves Christmas
The Polar Express
It's a Wonderful Life
How the Grinch Stole Christmas
The Christmas Shoes
Christmas with the Kranks
White Christmas
Miracle on 34th Street (original version)
I'll Be Home for Christmas
The Santa Clause
Santa Clause 2
Santa Clause 3
Classic Christmas Cartoons
Holiday Family Collection
Scrooged
A Christmas Carol (George C. Scott version)
Christmas in Connecticut
The Man Who Saved Christmas
Please post your list!