Update 2:45pm Eastern: turns out the below is a bunch of BS. Warner Bros. said this is not true and most likely fan made. Great job, CBM!
Finally, we get the official(?) word that Marion Cotillard and Joseph Gordon-Levitt have been cast on Christopher Nolan's The Dark Knight Rises as Talia al G'hul and the Black Mask. Comic Book Movie has the following up - but no source is listed and no other site has this, so...Editor in the house?
The Dark Knight Rises Casting Announcement
February 16, 2011
Warner Bros. Pictures announced today that Marion Cotillard and Joseph Gordon-Levitt have been cast in Christopher Nolan's The Dark Knight Rises and will join an ensemble cast alongside Christian Bale who returns in the title role of Bruce Wayne/Batman. They will play Talia al Ghul and Roman Sionis respectively.
On casting Cotillard, Director Christopher Nolan stated, "I am delighted to have the opportunity to work with Marion again and have no doubt she will be a great addition to our ensemble cast and bring to life a key part of the universe we have created as we finish our story."
On the addition of Joseph Gordon-Levitt, Nolan said, "I am thrilled to be working with Joseph again after a delightful experience working with him on Inception and am certain he will deliver another thrilling performance as one of Batman's most popular villains."
Nolan will direct the film from a screenplay he wrote with Jonathan Nolan, from a story by Christopher Nolan and David S. Goyer. Nolan will also produce the film with his longtime producing partner, Emma Thomas, and Charles Roven.
The Dark Knight Rises is slated for release on July 20, 2012. The film will be distributed worldwide by Warner Bros. Pictures, a Warner Bros. Entertainment Company.