Dominic Cooper Premieres 'The Duchess'

Dominic Cooper suits up in a slick-looking Versace suit and shoes at the world premiere of his new movie, The Duchess, at the Odeon Cinema, Leicester Square on Wednesday in London, England.

In the film, the 30-year-old British actor plays Charles Grey, 2nd Earl Grey, who has a passionate and doomed affair with Georgiana Cavendish, Duchess of Devonshire (Keira Knightley). The Duchess opens in UK theaters this Friday, Sept. 5.

Dominic is probably best-known appearance to date has been in Mamma Mia!. He is also known for his work on the Broadway production and film version of The History Boys.

Other pictures include a casual-looking Dominic arriving at the Time Out offices the day before.

15+ pictures inside of Dominic Cooper premiering The Duchess…