After watching The Curious Case of Benjamin Button (great movie by the way!), I’ve been wanting to know how they pulled off the aging effects for the film. To me, it worked seamlessly and there wasn’t a part that took me out of the movie. To see him from transforming from old to young was amazing and I have to say congrats to the studios involved!
Below is a link to an article on fxguide where they discuss the aging effects in the movie. It’s really interesting to see how they pulled it off.

fxguide – The Curious Case of Aging Visual Effects
Excerpt from the article: “But even those with an appreciation of the power of vfx will be stunned to learn that for the first 52 minutes of this epic motion picture, the head of Brad Pitt’s character is a CGI creation. “