 In _Audience with Peter Ustinov, An (1988) (TV)_ (qv), Ustinov  recalled that he had been attached to the role of Nero for over a  year before filming began. During this time he received a memo from  the producers, informing him that they still wanted him for the  part, but were concerned that he was too young. Ustinov replied that  Nero died when he was 31; if they waited much longer, he would be  too old for the part. He then received a reply, which he said he had  kept and treasured. The reply stated: "Historical research has  proved you correct."