Visible crew/equipment: In the scene towards the end of the movie when they are at the dinner table, Dory is telling Kelly about the time his father shot a squirrel and cried. If you look closely at the lower right hand window towards the back, you see a face appear in the window. It looks almost ghostly.
Continuity mistake: As Jerry is being driven away, Harper runs into the street to chase the car. From outside the car, we see Jerry's door window is all the way up. But his view of Harper in the door mirror shows the window is fully down. The shot changes again and the window is up.