 DATE: In the beginning of the movie we see Sacré Coeur, the white  domed church, atop the hill and the basilica is shown as being  completed. The basilica was not completely built until 1914, 14  years after the story takes place. Also it is shown directly across  the Seine from the Eiffel Tower, which is northwest. It is actually  northeast of the Eiffel tower and would not be visible in this view.