Variety reports that Robin Wright (The Girl With the Dragon Tattoo) is in talks to join Anton Corbijn's John le Carré adaptation A Most Wanted Man. Other sources, including the usually reliable IndieWire, are reporting that Wright will replace the previously cast Rachel McAdams as strong-willed pro bono lawyer Annabel Richter, but they all cite Variety as their source, and I can't find anything in the trade's story about McAdams leaving or about what role Wright will play. If she's replacing McAdams as Annabel, then clearly Corbijn (The American) and screenwriter Andrew Bovell have seriously altered the role from the novel, in which she is an idealistic young lawyer fresh out of law school. (Even McAdams was older than the role as le Carré wrote it.) I'd guess it's more likely that Wright will play either the wife of the still uncast Scottish banker Tommy Brue, or, more likely, the sidekick and sometime lover to Phillip Seymour Hoffman's character, Erna Frey. That character seems pretty tailor-made for Wright, in fact.
UPDATE: Fansite RachelMcAdams.org went directly to the producers and confirmed that McAdams is still involved in the project. So that probably means Wright will be Erna.