Keira Knightley deliberately ignores her mobile when it rings, much to the displeasure of her mother.
Keira said: "My mobile phone doesn't really get answered a lot. I don't like talking on the phone, which is a nightmare because my mother does."
Keira, who is currently filming 'The Edge of Love' in Wales with fellow British actress Sienna Miller, once even threw her BlackBerry handset into the sea so nobody could contact her.
She said: "I hurled it in the sea when I was working in the Bahamas doing 'Pirates of the Caribbean', so it's in the ocean there somewhere.
"I didn't mean to. I did actually go back and try and find it, but I was in a fit. I was like, 'I don't want to be contacted. Leave me alone.' "