Fans of the books will know that Harry has green eyes and Hermione has buck teeth. The film producer did try to give Daniel Radcliffe green eyes, but he suffered a terrible allergic reaction to the contact lenses and could not wear them. Emma Watson could not speak clearly wearing her false buck teeth. The Harry Potter books have been translated into more than 70 languages—to think, all this came about in 1990 when a young J.K. Rowling was on a crowded train from Manchester to London and the idea simply “fell into her head.”