For everyone comparing this new movie to the book and the tv series (and I am a fan of both) - Le Carre himself has said in interviews that he categorically did not want someone just copying the book or even the series. He wanted a new take on the story. Yes, it is different. Of course it would have been nice to have characters fleshed out a bit more, but then, I think that will be the problem with anyone who has read the book or seen the series - you expect the same thing stuffed into an hour something, and that is nigh on impossible. My only personal gripe is that I didn't really understand some seemingly superficial changes, like Sam Collins (in the book) being changed in name to Gerry Westerby (considering Gerry is a whole big character on his own in the second book, and ultra posh to boot), Czech Republic being changed to Hungary etc. But that is minor, and overall, I think this was a great, quiet movie, the kind of thing you just don't get anymore. To the commentator who said this movie was more about betrayal than spies, it's probably true that this was the emphasis, but in the book, it is just as much about the nature of betrayal in relationships as it is about spies (in the book see Guillam/Camilla, Smiley/Ann, Little Bill/Prideaux, Connie/The Circus and even reality as she knew it, etc etc), to the point where you wonder if there is anything redeeming about the world outside of the Circus.