English/UK Dopers, how would you classify this accent?

[Novelty_Bobble]

@Wendell_Wagner

Having now seen the movie, I can say that Emily Blunt’s accent is exactly right for what the character is supposed to be, someone who grew up in a well-off family somewhere around London but who has spent her adult life in the U.S. Since that also describes Blunt herself (well, she spent her adult life in the U.S. and Canada), she didn’t have to change her normal accent at all.

Exactly, I work for a US company and speak to many UK people who have lived there for a while and who sound just like that. An inconsistent US/UK mish-mash that changes according to accent of the audience.

So as has been said, it is a perfect accent for that role.