Do you have a non traditional Holiday movie (I'll take traditional suggestions too, but I have so many traditional favorites it would take all night to list them)
My brother thinks of Better Off Dead as "the christmas movie." I told this to some friends once, and discovered that they think of Die Hard as the christmas movie.
And long ago I read a great fanfic where Tulkas tells Manwe that The Great Escape is the christmas movie.
For the last few years, Jim and I have watched Hogfather as our Christmas movie.
Snakes on a Plane turned out to be better than I thought as well, but mostly because I didn't expect much. It will not become our christmas movie, though.