The `Never Let Me Go` star believes getting nude for a film role is not a big deal because everyone on set is often "respectful" and she always discusses what she is comfortable with beforehand. She said: It`s a consensual thing. You say what you`re comfortable with and everybody`s incredibly respectful." However, the 25-year-old actress was not so comfortable with auditioning as a child because she believed everyone thought she was "s**t". She told The Daily Telegraph newspaper: "Some kids did karate, I went to auditions. They were humiliating. You walk in a room and they obviously think you`re s**t. "So you walk again. I mean the rejection level of anyone who does anything like that. It is quite a savage process." Recently Keira admitted she had considered retiring from acting until the opportunity to work with Carey Mulligan on drama `Never Let Me Go` came up. She said: "`I didn`t know if I was going to go back to acting at all. I think for a long time I thought I wouldn`t. I think I intended not to work again. "Carey`s a very good friend of mine and I felt if I was to start making films again, she was someone who would watch my back."