Sam’s review published on Letterboxd:
A really wholesome movie about that universe's origins of Christmas. Full of jokes, visual gags and really, really beautiful animation. I can't comment enough how much I loved the animation. Very smooth and quick making the whole experience absolutely lovely to look at. The colour choices were really nice and warm adding that christmasy feel to it. The voice acting was really well done which helped a lot of the more quick and punchy jokes land. J.K Simmons was the perfect voice for Klaus himself.
Overall a very fun and lovely time, a really great family movie.
I also cried 3 times.