Actors Who Almost Got the Part

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Benedict Cumberbatch - True Blood split
Michael Tran/FilmMagic, HBO

What if Rachel McAdams turned down her part in The Notebook? What if Melissa McCarthy passed on Bridesmaids? These famous roles could have been played by other familiar faces, but would the films have been totally different? See who passed up or was passed over for some of the most memorable on-screen roles.