And plus, well, Katie Leung is English, and so is Cho Chang. It wouldn't work unless she had an English accent.

What do y'all think of the other casting for GoF? I know they've gotten Madame Maxime, Fleur Delacour, Cedric Diggory, and Moody. Not sure about Krum, Karkaroff, or Bagman. They may not even put Bagman in the film, as they need to cut down on time and he doesn't really play a needed role.