Julia Roberts and Danny Moder stepped out to get some groceries in LA over the weekend (parking in a handicapped spot — tsk, tsk). They looked like any average couple running errands, but before you know it she's back in movie star mode. This afternoon she sat down with Oprah and Tom Hanks, her costar in Charlie Wilson's War, to talk and laugh about life and how hard it is to commit to making movies these days.