He may be the most believable obsessive compulsive/con man you'll see in a long while. His performance is on par with someone like Jack Nicholson in As Good As It Gets for watch-ability of a truly sad lifestyle, and while Nicholson's performance was and still is funnier and more charming, Cage gets so into his character, the little mannerisms that pop up more often than expected, that we feel for the guy even as his eyes get twitchy and goes over certain spots in his house like a detective. Nicolas Cage, who plays Roy, part anxious/obsessive compulsive, part sly con man, and part father to a daughter he never knew he had, is a main reason to see this movie. What they have done, from Eric Garcia's novel (adapted by The Griffins), come off rather entertaining, if anything else, and boasts much more thought than would usually be attributed to such a Hollywood film.
Ridley Scott and Nicolas Cage deliver some of their best and most intelligent work in a few years, even if Matchstick Men is not quite either's great contribution for this year in film.