Continuity mistake: When they enter the shipyard during the final chase scene, you can clearly see the camera mounted inside the police car as it jumps and crashes into the frontloader. (01:35:56)
Continuity mistake: When Memphis is talking to the English guy during the scene when Kip is trapped in the car crusher, the English guy states that 80,000 pounds of pressure are required to crush a car. This is false, car crushers exert only 3000 pounds of pressure per square inch and this is enough to split a v8 engine in half and flatten the car to the point where it is only 8-10 inches thick. (00:15:42)
Continuity mistake: When fighting the bad guy he takes a full on smash in the face with a knuckle duster yet his face is hardly marked. Maybe all the Superman rumours are true after all? (01:42:30)
Continuity mistake: After the detective gets the idea of the black light in garage with the old car list, the camera cuts to the garage where they're walking in. You will notice when they walk in that one of them has a black light and the other has a White bulb. It pans down to the debris on the floor and he's now got a black light.
Answer: That billboard was part of an anti-smoking campaign from about 18 years ago. The image mocks the iconic Marlboro Man, with the cigarette in his mouth flaccid and drooping. The word "Impotent" is rendered large in the same type style as the old Marlboro logo. In much smaller text (not visible in the film), the sign reads, "WARNING: Smoking Causes Impotence."
Charles Austin Miller