UPDATE2: The Playlist confirms that Marion left the project.
UPDATE 3: Keira Knightley's rep told EW that nothing could be confirmed at the moment.
According to Alfama Films' (co-produces the movie) website, Rob has a new co-star in Cosmopolis: Keira Knightley
Marion Cottilard, previously linked to the part, announced just a week ago that she's expecting her first child.
Full page screencap
The Playlist has a great article about Keira replacing Marion. Click here to read it.
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