Keira Knightley is happy to bear her breasts on camera - because they are "so small".
The 27-year-old actress - who is engaged to Klaxons star James Righton - has a strict "no bottom" clause in her contracts, but doesn't mind stripping above the waist because she thinks people aren't very interested in her figure.
She said: "No bottom half! I don't mind exposing my breasts because they're so small - people really aren't that interested!
'"But] I think it's much easier as you get older. You can say, 'No.' 'Yes.' 'No.' "
The 'Anna Karenina' actress admits she is usually amused to see movie bosses "pencil in" curves for film posters - but she was furious when she was left with "droopy t*ts" on the promotional materials for 2004 production 'King Arthur'.
She told the December issue of Allure magazine: "They always pencil in my boobs.
"I was only angry when they were really, really droopy.
"For 'King Arthur,' for a poster, they gave me these really strange droopy t*ts.
"A... I don't have t*ts anyway and B... they digitally made them, and I thought, 'Whoa!'
"It's my face on that poster. I thought, 'Well, if you're going to make me fantasy breasts, at least make me perky breasts.' "