The Curious Case of Benjamin Button (2008)
David Fincher's bass-ackwards biography called for Brad Pitt to play the title character from his birth as an old man to his twilight years as a youngster. The CGI effects team from Digital Domain had to create a CGI lead character that would mirror Pitt's performance and hold up to scrutiny – for the first hour of the film. No small challenge – but they rose to it, capturing Pitt's performance and mapping it onto an anatomically-accurate maquette of the aged Benjamin Button – and then placing the resulting CGI creation onto the bodies of different actors who played Pitt at different ages. Check out how Digital Domain realised the effect in this TED talk.