The Wrong Arm of the Law is a 1963 British comedy directed by Cliff Owen and starring Peter Sellers, Bernard Cribbins, Lionel Jeffries, John Le Mesurier and Bill Kerr. In London, a gang of criminals from Australia led by Jack Coombes (Bill Kerr) impersonate policemen to carry out robberies. Local gang leader "Pearly" Gates (Sellers), who operates from the cover of a French couturier, finds his takings cut severely, and blames rival crook "Nervous" O'Toole (Bernard Cribbins). When it emerges they are both being scammed by the same gang, they join forces, along with Lionel Jeffries' Police Inspector "Nosey" Parker, to bring the so-called "I.P.O. mob" (I.P.O. - Impersonating a Police Officer) to justice.
Director: Cliff Owen
Producer: Aubrey Baring
Writer: Ray Galton
Writer: Alan Simpson
Writer: John Antrobus
Writer: Len Heath
Writer: John Warren
Music: Richard Rodney Bennett
Cinematographer: Ernest Steward
Actor: Peter Sellers
Actor: Lionel Jeffries
Actor: Bernard Cribbins
Actor: Davy Kaye
Actor: Nanette Newman
Actor: Martin Boddey
Actor: Irene Browne
Actor: Ed Devereaux
Actor: Dick Emery
Actor: Dermot Kelly
Actor: Bill Kerr
Actor: John Le Mesurier
Actor: Reg Lye
Actor: Arthur Mullard
Actor: Dennis Price
Actor: Graham Stark