Inspector Clouseau is a 1968 United Artists feature film, the third in the Pink Panther film series. It was directed by Bud Yorkin, written by Frank Waldman and Tom Waldman and stars Alan Arkin as Inspector Clouseau. It was filmed by Mirisch Films at MGMBritish Studios Borehamwood and Europe.
An organized crime wave strikes across Europe. Suspecting a mole within Scotland Yard, the Prime Minister brings Clouseau in to solve the case. Clouseau foils two assassination attempts but is subsequently kidnapped. The gang uses him to make masks of his face which they later use to commit a series of daring bank robberies across Switzerland. Eventually, Clouseau foils the plot and unmasks the traitor within the Yard.In addition to the title role, Arkin also played the members of the gang whenever they were disguised as Clouseau, with the other actors voices dubbed onto the soundtrack. ........
Source: Wikipedia