Continuity mistake: During the Bond/Paris love scene in Hamburg, Paris puts her arms around Bond's neck and they begin kissing. In the next scene she can be seen putting her arms around Bond's neck for a second time.
Continuity mistake: When the BMW drops off the roof and into the AVIS office, its trajectory is not consistent. It enters the AVIS office rather horizontally, but at that point in its trajectory it would have gone almost vertically.
Continuity mistake: In the garage chase scene, when the rocket goes through the BMW they show the shot of the side of the BMW; right as the rocket reaches where the front window was you can see that the rocket turns into more of a bottle rocket type thing as it goes through the car.
Continuity mistake: During the bike chase scene, the following Range Rover loses its indicator lens in one shot, only for it to re-appear in the next.
Answer: It's getting dark by this point - Bond and Wai Lin are dressed in black in a dark coloured boat. Anyone looking out of the window would be looking down towards them - they wouldn't be able to pick them out against the sea.
Tailkinker