When Hank shoots a chandelier, Jacob can be seen at the left of the screen, recoiling, his hand over his face as bits fly past him. A cut to Jacob, bits still flying, shows him perfectly still, staring down.
In an early scene, the Mitchells appear to look straight out their bedroom window to watch Jacob's pickup coming up the driveway, but a later outdoor shot of the house shows no front window that would provide quite that same view; further, the front windows are a different style.
A funeral scene in the latter half of the movie takes place in the middle of winter, but is a full burial service. In Minnesota, as is the case with other northern locales where the ground is frozen for several months of the year, the funeral for someone who died in the winter would occur in two parts: a "real time" memorial service followed by spring interment.