Age Isn't Everything From 21 to 84... Overnight! Young man gives up his dream of becoming an astronaut to go into business — and finds himself turned into a little old man. Details Casts Posters Title Age Isn't Everything Release Date 1991-01-02 Runtime 01 Hours 30 Minutes Genres Comedy Drama Fantasy Production Companies Unknown Production Countries United States of America Jonathan Silverman... Seymour... Robert Prosky... Grandpa Irving... Rita Moreno... Rita... Rita Karin... Flo... Robert Cicchini... Bruno... Brian Williams... Gerrard... Paul Sorvino... Max... MacIntyre Dixon... Mortini... Alvin Epstein... Dr. Hirsch... Dee Hoty... Dr. Ripper... Sylvia Kauders... Old Woman... Larry Keith... Dr. Morton... Michael Mantell... Dr. Chase... Michael P. Moran... Foreman... Marilyn Pasekoff... Dr. Sandy Franklin... Stephen Pearlman... ... Joyce Reehling... Mrs. Delfino... Sharon Sharth... Dr. Barker... Brian Smiar... Dr. Bush... Shirley Stoler... Madam Iris... Ralph Williams... ... Howard Witt... Rifkin... Bella Abzug... Self... Joyce Brothers... Self... Kreskin... Self... Lloyd Lindsay Young... Self... Ben Ellerin... Young Seymour (uncredited... Original Size (553x1000) Original Size (553x830)