During the opening car chase, the taxi sustains extensive body damage including right front panel and loss of the right headlamp. The headlamp reappears before he drives away, and right-side damage disappears by the time he arrives home.
When Eckhart stabs the mugger in the alley, a lot of blood can be seen on his shirt. Eckhart then folds his knife away and it is spotlessly clean.
After the nurse sets his arm ablaze, Eckhart's suit shows no burn marks.
Stunt man clearly visible as Derek Mills is beating up the nurse.
In the closing credits, it lists "Amtrack Ticket Agent" as a character role, when the company is spelled "Amtrak."