Factual error: Speed limit signs in France don't look like the one shown when the uncle is supposed to be in Paris. You can see that it has been filmed in Montreal, and they just added the Eiffel Tower in the background.
Factual error: There is no giant crater in the middle of Naperville, IL. Let alone at the end of a runway.
Other mistake: In the scene with a leak in the kitchen, the woman fixes it by turning an isolating tap above the leak. However the water would have been travelling up the pipe to the kitchen tap and so that wouldn't have stopped the leak. (00:34:00)