Is she filming in Paris? Luis is probably just there as a location coordinator. Whenever he directs, it's usually in the USA... the only one he did outside of the US was Beautiful Fighters, I think?
https://twitter.com/ishiiluis
Luis was also in LA at the Halloween party, btw. I don't know if I've ever mentioned this, but I think he may be related to Takahide Ishii (director of BALLAD/Born To Be.../Startin'/momentum) somehow.