The Cool Mikado

The Cool Mikado is a British musical film made in 1962, directed by Michael Winner, who makes a short appearance as an airline passenger a la Hitchcock near the start of the film and produced by Harold Baim, with music arranged by Martin Slavin and John Barry. It starred Frankie Howerd as KoKo, Lionel Blair and Stubby Kaye. The script was by Michael Winner, from an adaptation by Maurice Browning.

The following music and styles appear in the film. Except for the Mikados Song, containing some topical lines, lyrics are unchanged. Although heavily reorchestrated, the melodies were left essentially intact.Hank, the son of American judge Herbert Mikado, refuses to marry Katie Shaw, whom his father wishes him to marry, and so joins the army. He is stationed in Japan where he falls in love with a Tokyo art student, YumYum. However, her fianc, KoKo, an American gangster operating in Japan, is determined to keep Hank and YumYum apart. Hanks father had also sentenced KoKos brother to prison. ........

Source: Wikipedia