Keira Knightley has declared live theatre more rewarding than moviemaking, likening performing on stage to "sex with an orgasm".
The actress is currently appearing in a production of The Children's Hour in London, and insists the experience is more exhilarating than the drawn-out work that goes into films.
She tells Britain's Elle magazine, "Oh, God, the only thing that's going through my head to describe it is it's like sex with an orgasm at the end of it! Whereas film is like you have sex, but you never get the orgasm. A lot of stopping and starting... It's the completion of the story, the full arc."
And Knightley reveals she opted to make her stage comeback - a year after making her debut in The Misanthrope in the British capital - so she could improve her craft.
She adds, "I really noticed (in the Misanthrope) what I couldn't do and what I failed at. I'm just not interested in standing still. You go, 'OK, that was great and that bit was great - that's, um, great.' But if I'm not getting better, not learning, not changing, then what's the point of it? It must be boring for people to watch it if it's always the same... Not that I'm saying I made huge progress."