This week marks the 10th anniversary of the release of the movie "The Notebook."    The film adaptation of the Nicholas Sparks novel, filmed here in the Lowcountry, starred Rachel McAdams and Ryan Gosling - superstar actors today, but unknown back then.   So how did McAdams get the role, over what director Nick Cassavetes says were 9 "very well known actresses" who were up for the part?       Watch Rachel's audition and it's easy to see why she became Allie Hamilton: