Marion Cotillard cast in The Dark Knight Rises?

Batman on Film are suggesting that Marion Cotillard has signed on to TDKR. If true, then I have to agree with their summation that she will play Talia Al Ghul.

"According to the French magazine/newspapter LE FIGARO, Marion Cotillard has signed on for THE DARK KNIGHT RISES and will join the production this Summer while shooting in Los Angeles.
It's in French, but the story basically says that Cotillard has signed on for BATMAN 3, will join the production in LA this Summer, and will be the second female lead next to Anne Hathaway.
Hathaway has already nabbed the role of Selina Kyle/Catwoman. So would Cotillard be playing? I was told a while back that there was "A third major character that ties it all together." If true, my money's on it being Talia."