"I should imagine that if she wanted to act, I wouldn't have a choice. But, no, I certainly wouldn't recommend it. It can be completely heartbreaking for most people who do it - the amount of rejection is enormous. It doesn't matter what kind of person you are, it's impossible for that not to take a toll... I would say to my daughter, 'Be a doctor or a lawyer, something stable and useful'." Actress Keira Knightley hopes any daughter she has will steer clear of acting.