It was so enjoyable. I thought it was all going to be shot in half a day and it went on for a couple of weeks. They kept adding little bits until it's my scene coming down the stairs, and that's the opening of the picture. They wanted him to be so well known so that when he dies after the first five minutes, all the audience would go, 'Ahhh'.
Times of India has a recent article from an interview with Emma Watson. In a revealing interview she discusses her fear of being stereotyped as Hermione Granger and the general view of young actors:
My biggest fear is getting stereotyped. I want to do other things. But she added, in what may be a controversial plea for recognition as one of the architects of the Potter films' runaway commercial success, that I would hate to have another actress in the role (of Hermione). There is so much of me in her. Of course, JK Rowling wrote the character, but, in film terms, I had a part in creating her.
I am very careful to separate the two — there is Hermione, there is Emma. There is a professional life and a private life. I never mix the two.
UPDATE: The above referenced article has been replaced with an original scan & the comments attributed to Emma have been removed, as they were not her words.