When Addie and Emma look for the Lapp family Christmas tree they locate one that they need to look up to see the top, which visually appears to be about 4' taller than the characters. When they are carrying it back to the farm, it is smaller in height and diameter. The tree that is decorated in the house is similar in size to the one that was cut down.
While Dillon is showing Addie around the Christmas tree farm, he proudly points out the different species. Balsam fir, spruce, tamarack. The thing is...as anyone who has spent time in Montana will tell you, tamaracks are beautiful trees, they'd just be lousy Christmas trees. They turn the most brilliant yellow in the fall--just before they lose their needles for the winter.
When Adelaide Kay and Dillon are walking outside of Bev's store, Adelaide asks Dillon, "What does a carol mean to you?" the scene continues for a few seconds with them walking and then a black edit splice appears in the video and the dialogue repeats with Adelaide asking Dillon, "What does a carol mean to you?".
The movie takes place just before Christmas, and it was shot in the winter. However, there is a small difference between mid December and late February / early March - you can hear loud singing by singing birds in the outdoor scenes, and they don't sing between early autumn and late February / early March.