Don't know the About Schmidt film, but for dialog that shows
maturity, I'd point to any one od the films or plays by
David Mamet: Glen Gary Glennross being the most well-known example.
I have not cared much about seeing any Nicholson films per se
since the first Batman. Or any Robt DeNiro films at all. I made an _extreme_ exception for Wag The Dog... see Mamet above.