Unlike most here, I don't have anything against "resurrecting" dead actors through digital technology. Truth be told, it's something I've been wanting to see for years now (How else am I ever going to see Vincent Price, Bruce Campbell, Heather Langenkamp, and Rod Serling appear in a new Twilight Zone episode/film together?).
As long as the actors' likenesses are being used respectively -- ie. not in some teeny booper garbage or crass parody movie or other stupid schlock like that -- I see no problem with it.