I saw Redbelt recently.
Although I've enjoyed many of Mamet's movies in the past, I wasn't all that pleased by this one. Primarily due to the story, which required a little too much suspension of disbelief for my tastes. It seemed to me that many events in the movie flew way out of control, for no good reason. (To be fair, in the movie's defense, maybe I just didn't 'get' part of it. But I can't help but think that a couple of well placed phone calls would have resolved many of the events driving the movie.)
However, the acting and the fight scenes were generally pretty good and I thought that the lead actor, Chiwetel Ejiofor, was excellent.
Also, Cyril Takayama had a relatively small part in this movie. Cyril performed a bit of magic with a cigarette and then with a die.