Paul Newman, who has not appeared in front of the cameras since The Road to Perdition in 2001 (he was the voice of Doc, a 1951 Hudson, in last year's animated Cars), is again talking about retirement. In an interview with ABC News, Newman, who is 82, said that he has begun to lose his memory, confidence and invention. "So I think [acting is] pretty much a closed book for me." He had made similar comments a year ago, but had suggested he was considering one last screen appearance, setting off immediate speculation that he would team up again with Robert Redford, with whom he had made Butch Cassidy And The Sundance Kid and The Sting for the final film. There was no mention of that project during the ABC interview.