My favorite Holiday movie is actually a show (or a tv special to be more specific). How the Grinch Stole Christmas from 1966! I can't stop singing the grinch song, and make it sure I watch it every year around this time. Not to mention, the director Chuck Jones has a ton of beautiful work including Looney Tunes. The colors alone get me.
As you're lounging around today with your family watch it! Even if you've already seen it 20 times. Merry Christmas!