Continuity mistake: When the car's group exits the Washington hotel, there's a red-haired woman in green on the far right, meters ahead, and two passers-by on the left. When the car makes a turn, they've all exchanged sides and are now right next to the car.
Continuity mistake: Dr. Werner Ernst is talking with nurse Stella as he has his cup of hot liquid. She asks him "Is the world really that shallow?" James Spader is holding the cup from the top without using the handle, but in the next shot he is holding it from the side instead as he puts it down on the desk. (00:04:35)
Continuity mistake: In the sequence with Terence Hill and Marvin Hagler giving chase to the bad guys, when the baddies break the guard-rail and supposedly drop one level, the lights of the chasing car are still fully visible through the back window before the good guys take the same dive from the highway ramp.