Re: Emily Blunt = Scarlet Witch?
I have nothing against Emily Blunt, but she really doesn't look eastern European. Then again, Scarlet Johannsen doesn't look Russian, either. I'd prefer SW to be somewhat more exotic looking than Blunt.
I would go with who I wanted for Black Widow...Olga Kurylenko. She definitely has an eastern European look. Since she's not the Black Widow, I can accept her as the Scarlet Witch.