The World of Henry Orient is a 1964 American comedy film directed by George Roy Hill and starring Peter Sellers, Paula Prentiss, Angela Lansbury, Tippy Walker, Merrie Spaeth, Phyllis Thaxter, Bibi Osterwald and Tom Bosley. It is based on the novel of the same name by Nora Johnson, who co-wrote the screenplay with her father, Nunnally Johnson.