Car rental in France with U.S. drivers license

I'll give the answer the other way: as a Belgian who rent cars in USA, prior to coming to USA, I went to my local administration and ordered an international driving license. It is basically a holiday card size 12 pages booklet containing the translation of all my local driving license fields into 4 languages. It has my name and other information on it, has a stamp from my local administration, and is only valid if shown with my local driving license. I did rent cars in New York, in North Carolina and in California without any problem, but I have not been pulled over by police, so I can't really tell what they would do. That's supposed to be legal anyway. I would however strongly suggest reading Wikipedia page about driving in "the country where you will go", because for example, the American rule "right turn on red light" is forbidden everywhere except in USA. There are other regulations that might be totally obvious to Europeans, but would seem weird to someone coming from abroad.