DVD: Mr Belvedere Rings The Bell: Clifton Webb; Joanne Dru; Zero MostelYou're as young as you feel even when you're 80, according to Mr Belvedere! The sharp tongued expert on how to stay young decides to prove his theory by infiltrating a dilapidated old people's home and soon has the residents skipping and hopping, much to the dismay of his agent and the Reverend Charles Watson, who runs the home.