As a general rule, only those weddings performed according to the laws of France may be transferrable into your own country. In practical terms, this means that foreign couples are eligible for legal weddings in France only if one of the spouses complies with a minimum residency of 40 days in the France township where the mariage application is filled. There is a number of paperworks involved, including medical certificate, and Thema can assist for this. 

The French civil wedding register is quite strict, but once this is obtained, it is fully recognized. For USA, the France Tourism Office in New York has a detailed explanation available on its internet web page: http://www.francetourism.com/
Because of the residency requirement, THEMA recommands to perform the legal procedures in your own country, and plan in France a symbolic and sentimental ceremony.

Besides continental France, a small territory between France and England called Jersey Island, offer simplified legal mariage procedures: The residency status is only 4 days, and no certified translation in French is required, as the official jurisdiction is the United Kingdom. THEMA has also the capability to help you for Jersey Island legal wedding procedure.