
Keira Knightley and her
perfect pout stole the show at the world premiere of
The Duchess in London's Leicester Square last night. Looking gorgeous in her Alexis Mabille dress (
do you love or hate it?), Keira joined costars Ralph Fiennes and Dominic Cooper, director Saul Dibb and writer Amanda Foreman on the red carpet, taking time to sign autographs for the hordes of fans.

When I met the stars of
The Duchess, Keira Knightley, Dominic Cooper and Hayley Atwell were happy to spill about
the sex scenes in the film. Another hot topic was the Diana connection. Keira's character, Georgiana Duchess of Devonshire, is an ancestor of Princess Diana and there are parallels between the women's complicated marriages.

Recently I had the amazing opportunity to meet the stars of
The Duchess and hear all about the role sex plays in the movie, from the practicalities of filming sex scenes to the sexual politics of the period. Here's an excerpt of the Q+A with Keira Knightley (who plays the eponymous Georgiana Duchess of Devonshire), Dominic Cooper (who plays her extra-marital love interest, Earl Grey) and Hayley Atwell (who plays the third person in Georgiana's marriage, Bess Foster). Come back to PopSugar UK later in the week to see what else the gang had to say about the film, including
the Diana connection.