Emilia Clarke is mostly known for her role as Daenerys Targaryen in the hit HBO show 'Game of Thrones', so it's a bit of a departure for her to be playing such an iconic American role in the Broadway revival of Breakfast at Tiffany's. However, critics haven't taken as kindly to her performance as fans have, despite some early positive reactions.
The play officially opened in New York a couple of days ago, and New York Times columnist Ben Brantley writes in his review that Clake, "comes across as an under-age debutante trying very, very hard to pass for a sophisticated grown-up."
The Chicago Tribune's Chris Jones says that the play is, "misguided and miscast" whereas The Hollywood Reporter's David Rooney claims, "The poignancy of both Capote's brilliantly succinct prose and (Blake) Edwards' delectable film have been expunged from this bloated rehash... Part of that is due to the miscasting of Clarke... It takes skill and subtlety for a British actor to play an American hillbilly who wears her acquired sophistication like a satin sheath, and Clarke's delivery mostly comes off as effortful (sic) over-enunciation..."
It's unfortunate that Clarke's first major production outside of Game of Thrones has been met with critical disappointment, especially because she's considered one of the breakout stars of the show. However, she will have plenty of chances to redeem her place with the critics, and she should remember that the fan reaction from the show has still been fairly positive.