When the driver of Mercedes-Benz with number plates 1338 WW drives away from beer kiosk, it has no marks of burglary attempt on the trunk, which it had before.
The narrative tells the story takes place on Monday, 15th of September. Wall calendar in the perfume and bucket shop reads Friday, 9th of October.
A scarf with a chalk inscription "POMOCY" (help), which lands at Francesco's feet, is not the same scarf, which was thrown by a worker lifted by a crane (chalk letters are neatly drawn on it).
Both Mercedes-Benz W110 cars switched registration plates during the movie. At first, at the airport, 1962 W110 with side indicators had number 1338WW, while the other, 1966 W110 had number 3273WW. In later scene it was the opposite.
When the milkman makes a chalk cross on the floor in the beginning of the movie, the cross shown in the following scene is not the same one, probably made with paint.
In seducing scene in a shop, Marianna (Halina Kowalska) pulled down her panties. When she appeared wrapped in foil afterwards, one could notice, that she still had her panties on.
The policeman's kid says, that the other Mercedes-Benz was better-looking, than the one that he rode. It is strange, since both were similar black W110 limousines, and the kid rode newer second series car (around 1966), while the other one was older first series (from 1962).