So why didn't they milk out Game of Thrones one more season?

They’re all done with the show for good.

That explains why he was seen in a bookstore in Madison, Connecticut a couple of weeks ago.

Hey, I did, too! I enjoyed the show, and thought he was good in it, but didn’t remember him well enough to recognize him when I first saw him as Jaime Lannister.

He was also in an crazy good Norwegian thriller, Headhunters: https://www.youtube.com/watch?v=5am704I0zkM