The Lovely Bones will be released on January,2010 and Peter Jackson is giving interviews talking about the movie. As you all know Ryan was casted but dropped the role before the shooting started. Journalists, once again, asked Jackson about that, and this is what he answered;
Is it true that you cast Ryan Gosling as her father but that he dropped out right before filming started?
Ryan had always said to us that he was just too young to play the role of a 14-year-old’s father — I think he was 26 at the time. And then the film also spans seven years, so by the time it ends, Susie’s sister is about 20, and he’d have to play the father of a 20-year-old. Ryan’s a terrific actor, and we felt that he could act his way around this problem, and we’d help him with make-up and so on.
So our attitude was, “Don’t worry, there’s a way we can fix this and you’ll be great!” But he wasn’t so sure.
And the thing that was the catalyst was that we cast Rose McIver as Susie’s sister, and while Saoirse was 14, Rose was already about 19. Ryan just couldn’t make himself believe he could be her father when he was only six years older. He just couldn’t do it. Ryan needs more reality than that in order to do his best work. So when he told me, I was like, “Well, OK,” and it was very amicable. Luckily we got Mark Wahlberg to step in.
You can read the whole interview here