Maggie Gyllenhaal was worried about working with Dame Maggie Smith on the second 'Nanny McPhee' movie because she had heard ''really scary'' stories about her.
The Oscar-nominated actress confesses she had heard "really scary" stories about the British actress, but admits they got on well after they began working.
She said: "I had heard that Maggie doesn't suffer fools gladly and could be really scary and so I was really scared to work with her. But thank God she liked me. We had a really good time. I really like Maggie. She'd say amazing things. I heard her on the phone talking to her son and she was going to visit him after work one day and you could tell that he'd said on the other line 'What time are you going to be home?' and she said 'Oh I don't know. How long is a piece of string?' "
She told MoviesOnline.ca: "I got much more quick witted. That really is a muscle that I just, you know, that's part of being American too. That's part of being socially agile here, but it's really everywhere there, and if you can't keep up, you can't have a conversation.