Red One

This isn't a flawless movie; some of the CGI and character designs are terrible (e.g. The Krampus cantina scene); the tone is an inconsistent mix of earnestness and moderately profane PG-13 snark; and the conclusion is predictable (as it is with virtually every Christmas movie, to be fair.) Nevertheless it has enough strange notions along the way that it's entertaining in spite of its flaws. The worldbuilding is inventive and the story combines Icelandic, Alpine and Nordic traditions in satisfying ways. The acting is decent. The protagonists are well-developed and they're just barely sympathetic enough that their redemptions are rewarding. Some of the dialogue is deceptively sharp. Overall the movie isn't trying to be anything other than unconventional bombastic fun and it mostly succeeds.

This isn't a future classic or reinvention of a genre but it is enjoyable, quirky and affable. I'm perplexed by the overwhelmingly negative critical response; but having gone into it with low expectations because of same I was pleasantly surprised.