Do I even like enough Christmas films to fill out a list? Errr....
- Muppet Christmas Carol - Top tier, best version of the story IMO, top of the list.
- The Snowman (1982, not the dreadful Detective movie from a few years ago of the same name) - A beautiful work of art, painstakingly animated in pencil crayon to match the original graphic novel to a lovely vocal performance. 25 minutes of pure Christmas magic.
- Love Actually - Look, this movie is absolute trash, and a couple of the plotlines are actually awful (the one with the guy creeping on Kiera Knightly and the weird one with the guy who goes to America), but it's still somehow one of my favourite Christmas movies.
- The Nightmare Before Christmas - Unpopular opinion: This is an overrated movie. It's still good though.
- Jingle All the Way - Pretty much only on this list for the memetic power of Arnie, but it's entertaining!
Honourable mentions that aren't strictly Christmas movies:
Die Hard - It's set at Christmas, but... is it really a Christmas movie? Whatever the case, it's great.
Wallace and Gromit: The Wrong Trousers - It's not set at or about Christmas, but it's been on British TV EVERY CHRISTMAS FOR LIKE 25 YEARS. So as far as I'm concerned, this is the most Christmassy damn thing to ever exist. It's also excellent, funny and won an Oscar for good reasons. If I could put it at the top of the list, I would. It's just... not....technically a Christmas movie.