In The Cut -- The Book vs. The Movie

So my mother-in-law, 80 years old and functions as the family bookie, loans me In The Cut. Pure smut (one of my favorite things!). But actually a pretty good story, for that type of thing. Did anyone see the movie? Did anyone do both the book AND the movie? Was Meg Ryan believable? Is it worth seeing (and not just for the sex, although… :wink: )