I've watched this today at Sitges Film Festival and I had a good time, but it was probably thanks to the crowd, who were doing jokes and clapping all the time.
Now let's see. The photography is really good, mostly because Norway is a beautiful country.
The film in general is really funny, and their comedy style is really enjoyable (even more if you aren't neither American or Norway).
You could call this a familiar Christmas movie, but adding it a sadistic side in the last part of the film.
About the plot, it's kind of predictable most of the time, but I've never seen a movie with an evil norway elf, i don't know if you did, but it's not exactly common (which makes it better).
One last thing, the acting was really bad, like probably the little kid was the only one who did a kind of good acting, and the Santa guy.
I recomend this movie? Yes, if you have nothing else to do.