Continuity mistake: Illya changes clothes in mid car-chase. When he and Solo leap into the convertible and drive off, he's wearing a brown leather jacket and jeans. As they race down the road, he's suddenly in a dark blue suit and tie. When they jump out of the car again, he's back in the brown jacket and jeans.
Continuity mistake: When Napoleon is trying to leave Nina's house, and Daddy Jo shoots the pair of slacks they're holding between them, Napoleon drops the part he's holding, while Nina still has a grip on her end. In the next shot, Nina isn't holding anything, and Napoleon drops his end a second time.