Crime Comedy
The crooks in London know how it works. No one carries guns and no one resists the police. Then a new gang appears that go one better. They dress as police and steal from the crooks. This upsets the natural order of the police/criminal relationship and the police and the crooks join forces to catch the IPOs (Impersonating Police Officers), including an armoured car robbery in which the police must help the gangs to set a trap.
Directed by
Cliff Owen
Written by
Alan Simpson, John Antrobus, Ray Galton
Michael Caine
Police Officer (uncredited)
Peter Sellers
Pearly Gates
Ed Devereaux
Bluey May
John Le Mesurier
Assistant Commissioner
Graham Stark
Sid Cooper
Bernard Cribbins
Nervous O'Toole
Lionel Jeffries
Inspector Fred 'Nosey' Parker
Tutte Lemkow
Siggy Schmoltz
Deryck Guyler
Police Constable at Scotland Yard (uncredited)
Dennis Price
Educated Ernest (uncredited)
Marianne Stone
Woman at Meeting (uncredited)
Gerald Sim
Airport Official (uncredited)
Nanette Newman
Valerie
John Harvey
Sergeant at Police Station (uncredited)
Reg Lye
Reg Denton
Martin Boddey
Superintendent J.S. Forest
Bill Kerr
Jack Coombes
Irene Browne
Dowager
Dick Emery
Adulterous Man (uncredited)
John Junkin
Maurice (uncredited)
Vanda Godsell
Annette
Davy Kaye
Trainer King
Mario Fabrizi
Van Driver (uncredited)
Arthur Mullard
Brassknuckles
Cardew Robinson
Postman (uncredited)
Dermot Kelly
Misery Martin
Barry Keegan
Alf
Harold Siddons
Police Constable in Garage (uncredited)
Jack Silk
Police Constable at Station (uncredited)

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