There are programs for young people to stay with host families in France. If you qualify this is an excellant method for a young person.

Of course, you'll have less flexibility as to the means (and therefore costs) of getting to France with such a program.

If you are of student age then you can get by in France for remarkably little money. Stay in youth hostels and eat at the cafeterias run by CROUS (the French student organization) and your costs will be remarkably low. You can eat a full meal at a CROUS cafeteria for as little as 3 or 4 dollars.

If she is a legal resident of France and holds a residence permit then she can travel freely in the Schengen zone with this card and her passport combined.

I assume from the gact that you mention she is not a citizen of France that she does not have a French passport.

If she is currently on holiday in France and again it depends on her nationality.
- If she is American, Canadian, Australian or another nationality which is allowed to travel under the Visa Waiver Program, then she is free to travel to Greece so long as she will not stay in the Schengen area more than 90 days (out of any 180 days)
- if she is there on holiday with a Schengen visa, then it depends on her actual Schengen visa and how long she has been in Schengen zone. A Schengen visa MAY have restrictions (e.g. that she can only visit France or that she cannot visit Greece), and also it may state x days visit which is less than 90 days, and she will need to stick to this limit for the total visit (and not just the stay in France)

So it depends on her immigration situation and nationality which you do not mention.

It is true that there are no border controls in the Schengen area but there may be random checks on odd occasions and if travelling via an airport a passport is still required which will be verified.

EDIT – ok, based on your updated info, if she is legally residing in France with a residence permit (usually based on family reunification on the basis of her French husband) then she just needs this permit plus her passport and she can travel in the Schengen zone freely. Note: this is only for the case for the Schengen zone and not for the total EU.

But try it, no harm trying.

I may be wrong, but did you manage to get a shot of Enya herself in your video.

At about 33-35 seconds you see her? sitting in a cafe window.