During the Jump Rope Contest segment, during the dinner scene, the amount of vegetables in the serving bowl changes in between shots.
During the jump rope contest segment, during dinner, as Sister states that she's the best rope jumper in Bear Country and Lizzie isn't, there's one piece of meat, broccoli, and a carrot on her plate. As Mama explains to Sister that bragging causes bears to dig down into a big hole, Sister's plate is full of vegetables.