I thought Zack was a much better protagonist than Cloud, so I want someone equally as awesome to play him. Nathan was able to command a crew aboard a Firefly, I think he can handle being the main man.
He's a minor character but would still be important, perhaps Tseng's role could be expanded in the movie.
Sabin Kenobi's rating:
Here it goes, I really enjoyed Crisis Core, even more so than FFVII itself. While I don't know if it was received well enough to make a movie, it would be awesome if they did. So here it goes, if they did make a movie, I think these actors would fit the characters pretty well either in looks or personality but hopefully both.
Suggestions? Possible Changes? Feel free to leave comments / constructive criticism!