Shared publicly  - 
Some more from me tonight at Forbes, with word about that big Batman rumor you've been hearing...
Adrian Martin's profile photoMark Hughes's profile photo
Could very well be true, but reps, crew and Marion Cotillard herself denied being Talia Al Ghul...the rumors will continue until either a) it's proven to be true or b) someone more appropriate is brought up. Right now, denial is the name of the game, regardless of who it is.
The denials were pretty forceful in this case, and they denied it to everybody who spoke to them, even top media outlets. I think if it were true, they'd have just not commented, the same way WB has treated rumors. If it did turn out to be true, I'd be very surprised (and disappointed).