Ben Affleck as Nick?

I had the advantage of not having read the book, and so not bothered by trivialities (sorry). Meanwhile, I think Affleck was really good in this role.

Ben Affleck is actually pretty intellectual and astute. But he's a horrible actor, and I had my doubts when he was cast. However, I thought he pulled this off quite well. He played Nick with just the right amount of disingenuous, smug smarminess. If Nick is played correctly--as in true to the character of the book--you want to punch him in the face. Affleck succeeded. The fact that he cheated on his wife with the young nanny in real life helped. ha

You're not buying Ben Affleck as a writer? He won an Oscar together with Matt Damon for their screenplay for Good Will Hunting. If that's not a reason to buy an actor as a writer, I don't know what is! He's a great writer. You'd know that if you watched the movies his written or adapted to screenplay.

Caesar. Is. Home.

Affleck is not who I envisioned in the role. I think someone like Lee Pace would have been better. Affleck was ok, but certain aspects of the character were lost in the translation from the novel to the screen.

Yeah. I thought they should have gone with someone younger. Plenty of better actors in the born in 1978-1980 range. Would have been more believable as her twin and the same age as Amy.

Ageism isn't rampant enough? (Snideness aside, I hadn't read the book, thought Ben Affleck was good in this movie though. Several others as well, actually, Gigli being a glaring exception.)

I thought Affleck was excellent casting. He was just right!

Because this is one role where you actually want an actor who seems shallow and self-absorbed.

He looks mid to late 30s.