Continuity mistake: When Mack and Jesus are running on the river, they switch sides between shots.
Continuity mistake: When Nan comes out to see the group off on the camping trip, she has a pack hanging on her left shoulder, but then it instantly disappears between a frontal shot and a back shot, and never seen again. (00:10:40)
Continuity mistake: When Mack is plowing the snow in his driveway and the plow runs out of gas, the amount of snow around the plow changes between shots. It is especially noticeable on the plow's left where it goes from no piled snow to a row of piled snow. (00:08:20)
Continuity mistake: When Mackensie is having breakfast with Papa, right as he tells Papa she doesn't stop bad things from happening, there is a 2 second cutaway after which there are multiple changes. The geese in the background have disappeared, the shadow on the grass changed, a biscuit on the tray moved, and Papa's red coffee cup moved. (01:04:50)