I'm yet to see Enter The Void, or Irreversible for that matter
I think the French have put out some excellent films in recent years, but the one that tops the list for me has to be Martyrs. First time I watched I felt it had been over-hyped to feck, but repeated viewings it left a huge impact on me and would regard it a firm favourite of mine now.
Thoroughly enjoyed The Divide.
Satan - good for a laugh
Calvaire - not French but still a good little movie
The Horde - hmm didn't rate it much, but perhaps I should re-watch while not so inebriated
My colleague has been covering French extreme cinema in a lot of detail, part three not up yet but a shameless plug for anyone who cares
A Look