Jolie would be good if she was the same age she was in Gia. Remember, these people are Prolong recipients. They look like they are twenty when they are fifty, or even seventy.
While I would love to see a movie adaptation I have a hard time casting it.
I have been reading the series since Basilisk came out and am currently reading the latest "Storm from the Shadows". I am glad you are getting to enjoy the series. Keep us updated on your progress, I would love to hear your thoughts on it.