At one point during the police impound, oil shoots out from the front of the camping car, causing a couple of people to slip on it. Moments later, the oil has vanished, never to reappear.
The green car transporting the tree log (number 3832GE78) is missing the tree log in the bottom-up scrolling plane at 679 seconds into the movie.
Around 00:11:15, we see a car exit from the manufacturer. This car is turning on right, closed to a yellow car. On next shot, the yellow car is missing.
Around 00:35:28, two motorcycle cops stop and let skid marks on the road. On next shot, skid marks are missing.
at 0:09:24 a man carrying 3 boxes has has black and yellow strips on the right side and in the next shot at 0:09:26 stripes position changes to left.
Repairs to the front fender of the Altria camper car come to a halt while Tony and others watch astronauts walk on the moon. The TV commentator can clearly be heard saying "Apollo 12". But the 1969 Amsterdam AutoRAI show was held in February, whereas the Apollo 12 moon walks took place the 19th and 20th of November.
Several (Dutch) license plates can be seen on various different vehicles, sometimes even in the same shot. For instance the license plate "FT-92-65" can be seen in the petrol station scene on both a Peugeot 504 and a Chrysler 180. Later the same plate is on a Peugeot 204 passing in front of the exhibition center.
In the "road rage" scene the number 76-04-NF is on both the Renault 16 and the Citroën ID. Shortly after the same plate is on an Opel Kadett parked in front of the exhibition center.
During the car crash, when the white Citroen DS goes on its front wheels, the camera cuts to a reverse shot showing the DS from behind, revealing small auxiliary wheels underneath the car to make it run that way.
While Mr. Hulot is trying to remove a wheel with a flat tire, he is sometimes tightening and sometimes loosening the lug nuts.
The auto show is held in the RAI Amsterdam Convention Centre, and at the end of the film M. Hulot and Maria walk a short distance in the rain to a nearby train station, clearly labeled as Amsterdam Centraal.
Amsterdam Centraal is about 5 km away from the exhibition hall. There is however the Amsterdam RAI train station less than a 10 minute walk away from where they started.
Amsterdam Centraal is about 5 km away from the exhibition hall. There is however the Amsterdam RAI train station less than a 10 minute walk away from where they started.
A wide shot shows the empty exhibition hall which seems to be subdivided into lots by thin wire on poles. While only the poles are visible from the distance, some men have to climb over the wire as they cross the scene. But if you look closely at their foot movements, obviously there is no wire as otherwise they would repeatedly get stuck and stumble.