This one looks promising.
It seems like you can always look forward to at least one top-grade thriller from France every year. Last year brought us The Page Turner. Lemming opened in the U.S. the year before that. Cache I think would qualify for 2005, Red Lights for 2004, Read My Lips for 2003, With a Friend Like Harry for 2001, etc.
I think the French have really taken up the mantle of Hitchcock since the Master's passing, and I hope Lelouch is following in that tradition with Roman de gare.
This New York Times article talks about how he fooled the Cannes folks into thinking the film was really the work of another, younger director! Apparently Lelouch's work has fallen out of fashion, although I don't remember receiving that memo.
