A very impressive take on creating Benjamin Buttons face, using the most modern CGI known to man. Did you even realise the first hour of the movie was a completely computer animated face? Every action, reaction, motion and emotion of Brad Pitt's face was interpreted by a computer, and transformed to a face which aged roughly 45 years. And it looked 100% real.
All in all, the movie A Curious Case of Benjamin Button is worth viewing, but especially so after watching that little making-off! Amazing what technology can accomplish these days ...