Keira Knightley and Dominic Cooper attend a special screening of The Duchess on Wednesday evening (September 10).

Chanel and Vogue hosted event which was held at The Public Theater in New York City.

Meanwhile the movie which is set for limted release in the States on 19 September, has took in over $2.5 million at the box office in England.

It came in at number three, behind Guy Ritchie’s movie Rocknrolla (number 1) and Mamma Mia! (number 2).