Monkey Business is a 1952 English-language Comedy Sci-Fi movie written by Harry Segall, Ben Hecht, Charles Lederer and I. A. L. Diamond. The movie is directed by Howard Hawks and produced by Sol C. Siegel under the banner of 20th Century Fox. Barnaby Fulton is a research chemist working on a fountain of youth pill for a chemical company. While trying a sample dose on himself, he accidentally gets a dose of a mixture added to the water cooler and believes his potion is what is working. The mixture temporarily causes him to feel and act like a teenager, including correcting his vision. When his wife gets a dose that is even larger, she regresses even further into her childhood. When an old boyfriend meets her in this state, he believes that her never wanting to him again means a divorce and a chance for him. Written by John Vogel. Monkey business features Cary Grant, Ginger Rogers, Marilyn Monroe, Charles Coburn, Hugh Marlowe, Henri Letondal and Isabel Withers. The music was composed by Leigh Harline. Cinematography was done by Milton R. Krasner and editing by William B. Murphy. The motion picture has a running time of 97 minutes. It was released on 5th September 1952. The film made a box office gross of $2 million. Distribution rights for the movie were acquired by 20th Century Fox.