Continuity mistake: Dabney Coleman's tinted glasses are cracked, then the glass is missing altogether, and then they are cracked again.
Factual error: At the end of the film, Amos is shown turning onto I-95 south. However, he does so from an intersection, not an on-ramp. Since interstates are limited-access highways, in reality he would have needed to use an on-ramp to enter I-95.