The phrase "monkey business" indicates business which is not serious. There have been many movies, typically comedies, named Monkey Business, most notably those by the Marx Brothers in 1931 and by Howard Hawks in 1952.

1. Monkey Business , from 1924 [1]
2. Monkey Business , from 1925 directed by Earl Herd [2]
3. Monkey Business , also from 1925 directed by William Nolan [3]
4. Monkey Business , from 1926 [4]
5. Monkey Business, Marx Brothers film from 1931 [5]
6. Monkey Business , from 1952 aka Howard Hawks' Monkey Business
7. Monkey Business , from 2000 [6]
8. Monkey Business , from 1996 [7]
9. Monkey Business , from 1998 [8]

There are some other movies whose titles can be translated as Monkey Business or have been later released under that name.

1. Monkey Businessmen , from 1946 [9]
2. Ausgerechnet Bananen , from 1980 [10]
3. Ma liu guo hai , from 1982 [11]
4. Negocio redondo , from 2001 [12]

Monkey Business is the UK Discovery Channel television series about Monkey World.

There is an album called Monkey Business by Black Eyed Peas.

Monkey Business is a czech rock band.

Monkey Business is the name of the boat that Gary Hart used to engage in an extramarital affair which doomed his 1988 bid for the Democratic nomination for President of the United States.