Continuity mistake: After the two main characters sled down the mountain in that boat, they all fall into the river. In the next shot, they come up from underwater, and the boat miraculously is right-side-up with no water in it.
Continuity mistake: During the chase scene on the winding mountain road, the door on the yellow ice cream truck is wide open during the whole chase, except when we see the truck from an aerial view, then we notice that the door is not only closed but locked as well.