The Oscar-winning actress - who has appeared totally naked in `Titanic` and `Mildred Pierce` - thinks flashing the flesh in front of a camera is a "profoundly bizarre" and "unethical" thing to do.
She said: "I hate it! Listen, make no mistake, I just get on it. I just go in and say `Oh f**k, let`s do it,` and boom!
"If you complain about it or procrastinate it`s not going to go away. It`s a profoundly bizarre thing to do."
"As actors you talk about it all the time. You can literally be tangled in sheets, and you turn to the other actor and say, `What the f**k are we doing?` `Dear Mum, at work today I had so-and-so`s left nut sack pressed against my cheek`. It`s sort of unethical if you think about it in those terms."
Despite admitting to always feeling nervous before she takes on a new project, the 35-year-old star - who won the 2008 Academy Award for Best Actress in `The Reader` - hopes her jitters continue as the day she finds a role easy she has vowed not to "f***ing bother"anymore.
Kate added to V magazine: "I hope I am s***ing myself over the characters I play for the rest of my life, because the day I go, `Oh yeah, that`s going to be a piece of pie`, why f***ing bother? If you do that, you do not learn."
"I hope I`m always learning something. So I won an Oscar. It`s amazing. I`ve got that for the rest of my life for a performance I am proud of. It nearly killed me. I am really proud of the film."