13Emily Blunt
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British actress Emily Blunt was offered the role of Black Widow in Iron Man 2. But she was working on Gulliver’s Travels at that time, and could not play the role, which went to Scarlett Johansson. Black Widow went on to become an icon and that must have been pretty difficult for Emily.
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14Dougray Scott
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Did you know Scott was offered the role of Wolverine in MCU and turned down the iconic role? He almost accepted it, but he wasn’t done filming Mission Impossible 2 with Tom Cruise and had to pass over playing Wolverine.
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15Rachel McAdams
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Though she was recently seen in Doctor Strange, she was earlier offered the role of Iron Man’s girlfriend Pepper Potts, and though nobody knows why she declined the role, she obviously wanted to be a part of MCU and bagged Doctor Strange. Pepper Potts is played by Gwyneth Paltrow.
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Image Source: comicvine.gamespot.com