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I was staring at a poster for this movie while waiting for the subway, and was struck by the odd lowercase g, y and the slightly-off serifs on the cap C and S. Identifont and Whatthefont weren't much help, but I did learn that those lowercase oddities suggest a Vibert-influenced Didot. The closest I can find is Ambroise, but there are some definite differences (t, K, and j to name a few).
Any clues? Is this perhaps a custom mash-up of Didones?