The name of the town is interchangeably spelled Bigfork and Big Fork.
Around 40 min in, Carsons and Bradleys are in the Carson's Christmas tree lot to take a tree. It's dark as is evening and there is snowing (albeit digital). They take a tree inside Carson's family home and decor it. After decorating it, Sara and Travis go out and sit on porch. Not only there is no more snowing, but suddenly the whole sky is completely clear and they even watch the meteor shower.
When Sara and Travis are watching the meteor shower, they would not be able to see the number of objects in the night sky as they do with all the Christmas lights outside.
The movie takes place in Montana just before Christmas. It is the coldest US state. However, it was clearly shot in autumn. There are green, light green, and yellowish deciduous trees in outdoor scenes, and green deciduous bushes in the front of inn. Also snowing in the few scenes is digital, and in the few scenes is artificial snow (which is completely different from the real one) clearly pushed from snow machine. There is some snow on trees and it looks like cotton wool.