One of the holy grails of special effects for a few years now has been the fully realistic all-digital animated human. Computer animated human characters have been passed off as real for fleeting shots, most often to replace stunt people, but nobody has ever given one any kind of serious acting to do. Yet people have been assuming it was just around the corner for years, with the general assumption being that someone would use digital technology to try to bring back a deceased star (existing gestures in this direction, like Marlon Brando in Superman Returns, have always used manipulated footage of the original actor).