It's always nice to have your mum on hand for support, even when you're a movie star. Keira Knightley was joined by her writer mother Sharman McDonald as she attended a Jimmy Kimmel appearance in Hollywood. The A List Brit looked elegant in a white and black polka dot midi dress and simple black pumps as she arrived. But ,she was obviously planning on changing as her assistant and mum were seen to be carrying a change of clothes for the star.