My French (language) competency is limited to about 3 years instruction, 65+ years ago, and now listening to such programmes as the French Maigret, Bruno Cremer, where a surprising amount of the dialogue is still recognisable to me.
The point being made is that, though my abilities in the language are very limited, I don't recognise the language being spoken here as being French. A member of my household is better trained in languages (University level in French, German and some Russian) and is also doubtful that the language being spoken here is French. Marion claims to be born and bred French and it's hard to understand why French would not be her first language.
N.B. There's probably some simple point that I am missing and I would be glad to find out what it is.
N.B. The french Maigret (Bruno Cremer), in my humble opinion, is streets ahead of our UK Maigret, Rupert Davies, and the programme is a fascinating insite into French police methods (albeit the late 1940's/50s) and French approach to justice.