Monkey Business

Monkey Business is a 1952 American screwball comedy film directed by Howard Hawks, written by Ben Hecht, and starring Cary Grant, Ginger Rogers, Charles Coburn and Marilyn Monroe. To avoid confusion with the unrelated 1931 Marx Brothers film of the same name, this film is sometimes referred to as Howard Hawks' Monkey Business. Plot Dr. Barnaby Fulton (Cary Grant), an absent-minded research chemist for the Oxly chemical company, is trying to develop an elixir of youth. He is urged on by his commercially minded boss, Oliver Oxly (Charles Coburn). One of Dr. Fulton's chimpanzees, Esther, gets loose in the laboratory, mixes a beaker of chemicals, and pours the mix into the water cooler. The chemicals have the rejuvenating effect Fulton is seeking. Unaware of Esther's antics, Fulton tests his latest experimental concoction on himself and washes it down with water from the cooler. He soon begins to act like a 20-year-old and spends the day out on the town with his boss's secretary, Lois Laurel (Marilyn Monroe). When Fulton's wife, Edwina (Ginger Rogers), learns that the elixir "works", she drinks some along with water from the cooler and turns into a prank-pulling schoolgirl.