The black Mercedes sedan has European wheel covers and two license plates in France vs. the one license and U.S. wheels on the model used at the house and the airport hanger.
In the background of the French airplane hanger, the vehicles including license plates look very American.
The cabin where the final gun fight scene occurred was the "abandoned cabin" in Enemy's Gold.
When Samantha is on the airplane with Nicholas, he explains to her that they work for the International World Arms Removal, but he incorrectly calls IWAR an anagram when it is really an acronym.