The Place de la Concorde was used by the production as background for some scenes. This came after several weeks of negotiation between the director and producers of the movie, and the mayor of Paris, since the location is rarely closed for movie production. The scenes were shot after midnight and before 6:00 p.m.
In the scene where Suzie is following Cesare and his friends on her bike, they go through a passage where you can see the Eiffel Tower in the background and it is lit up. However, the lights were not added to the Tower until 1986.