Miller can't control urge to swear

British actress Sienna Miller finds it hard to censor herself during interviews - and even once said "f**k" live on an American TV show.

The Alfie star feels at ease talking to the press and often reveals her innermost feelings during media chats - but her tendency to speak freely has landed her in hot water many times before.

She says: "I find it very hard not to be myself and maybe that does attract attention, but I'd be miserable if I wasn't. I love having a chat and they know I'll probably say something stupid which is good for their ratings.

"I said 'f**king hell' by accident on Good Morning America, which was classy. I thought they had stopped filming.

"The producer of (new movie) G.I. Joe said they might have to give me lessons on how to conduct yourself in an interview."