I think you are probably right. France has deep Catholic roots, although the growth above the ground in not seen much these days. But I think the present generation which is largely unchurched will be curious to see this film.
Think you are right.. many will go out of curiosity & to find more ammo against the USA.. I think many of them will be touched & it will backfire. WE can only pray that this sharing of God's message will NOT come back fallow, in all the locales of the world.. even Hollywood. I think there will be an impact on many of the stars. Many of them have chruch in their backgrounds. Their souls will be confronted.