Gamer 2.0 writes: "Video games based on movies don't usually fare well with gamers or critics, and games based on movies based on books don't usually fare well either. But every once in a while, there are games based on the latter that surprise their audiences. This was the case with the release of Harry Potter and the Order of the Phoenix. But with the recent release of Harry Potter and Half-Blood Prince, was the last game a stroke of luck?"