How Benjamin Button got his Face

I really enjoyed the movie The Curious Case of Benjamin Button.  Particularly because I was so enthralled by the special effects used to make the actors look younger and older.  They were amazingly well done.  I just watched Ed Ulbrich's TED talk about how Digital Domain created Benjamin's face, and now I'm even more impressed.  His head is computer generated for the first hour of the film.  The process that they created to make the effects realistic is pretty incredible.  They innovated by using "technology stew" - combining little bits of relevant technology gems from gaming and medical imaging.  I recommend listening to the explanation.  They had me at phosphorescent makeup...