I didn't even see the movie, but I periodically go back to look at Kate Winslet's quintessential English cottage in it-- it is so cute!
https://hookedonhouses.net/2018/10/08/rosehill-cottage-holiday-movie/
The exterior was just a shell (but what a shell) they erected temporarily, and the interior was all mocked up in a studio, sob. But it looks so REAL!
Note the extremely subtle Christmas decorations. In the one shot of Cameron Diaz in front of a mantel, there's a string of lights. There's another string (of nuts?) decking another mantel in the house, I think, and a wreath on the front door in some shots. I guess Winslet's character doesn't have the advantage of a British Valerie Parr Hill to order from, ha. But some colors and the 'coziness' in the cottage suggest Christmas to me.
I just love it so much. The tiny library, the stone walls visible in the interior, the blue cabinets in the kitchen. And that extremely cute mini- bathtub...