Factual error: When the family is driving from New York to New Jersey, you see a highway sign for the exit for New Jersey. In the background is a Dofasco building which is in Hamilton, Ontario, very far from New York or New Jersey.
Continuity mistake: When Lindsay Lohan searches through literally a pile of clothes her blonde friend suddenly feels guilty about lying to her parents. During the following discussion on the bed the camera changes angle frequently. Although at the lower end of the scale of continuity error, you can see that the facial expressions of the blonde girl differ frequently from shot to shot, not in line with the continuity of the scene. (00:32:45 - 00:33:20)