Keira Knightley: 'Atonement' will be 'grown up'

Keira Knightley has said her current film project Atonement will be "grown up" compared to Pirates of the Caribbean, informs Digital Spy.

The movie of the Ian McEwan novel will see the star play student Cecilia, who falls in love with doctor Robbie, played by James McAvoy.

As Daily Mail reports, one terrific scene shows McAvoy typing Cecilia a note revealing, in sexually explicit terms, his truest feelings for her, which he then, mistakenly, has delivered to her. Later she and McAvoy make love, keeping their clothes on, but all the zips and buttons are unfastened, in one of the most erotic moments that's likely to be seen on screen this year.

"I was 17 when I started playing Elizabeth in the Pirate films and they were fun, but very much meant for families."

"Now I've grown up and so have the roles."