I noticed something when I was watching BB the other day, they pronouce Ra's Al Ghul differently than in some of the other appearances of the character. In BB they pronounced the first part almost like a ra cheer with an s at the end, but in Arkham City they say it like ray with the sh making almost a hissing sound. I'm pretty sure I've heard the AC pronunciation in other places, but I'm not entirely sure which is correct.