What's your 'must watch' Christmas film?

[BadTasteFlump]

I want to add a new one to our collection. The DC love watching Chrismas films (and so do I) through December, so we have quite a few already:

The Santa Claus
Charlie Browns Christmas
Home Alone
Elf
Mickeys Christmas Carol
National Lampoons Xmas
Muppet Christmas Carol
Polar Express
(they also watched The Grinch on rental last year and were a bit scared of him so have crossed that one off my 'annual' list)

We also have some we watch ourselves when the DC are in bed:

The Holiday
Love Actually
Die Hard
Wonderful Life
Meet me in St Louis

So can anyone recommend a couple of new ones for me to add to our collection this year? A new one for the DC and a grown up one would be good

We also like Father Christmas, the animated Raymond Briggs film. We've seen all the others mentioned except Nativity (on my wish list) and It's a Wonderful Life - which is one of my Christmas presents this year. I have heard It's a Wonderful Life though, I found a website that had lots of really old american radio plays on and downloaded it, it was recorded just after the film release with all the same actors. It is my DD8's favourite track on her mp3 player.

I got Nativity! for £5 in sainsbury's this week. i laugh at the same jokes every time.

Oh I just LOVE National Lampoon's Christmas Vacation - makes me lol every time I see it.

Muppet Christmas Carol!