The French sure know how to make Horror films!!
France is probably the leader today for making "disturbing, graphic" horror films... recent ones (since 2000) include "High Tension", "Martyrs" and "Inside".
Also many great older horror flicks have come out of France as well... "Les Diaboliques", "Eyes Without A Face", "Daughters Of Darkness", "Possession" and "Baby Blood" to name a few.