W.W.
I think the only "G" rated films out there are from the '60s!!
How the Grinch Stole Christmas - with Boris Karloff
It's a Wonderful Life (which, I don't think, unfortunately, kids would be interested in)
Rudolph The Red Nosed Reindeer (with the cheesy animation! :) - but I LOVE LOVE LOVE it!!
The Peanuts Christmas Movie
Polar Express (I personally didn't like it).
The Muppets Christmas