[2] A wartime morale booster, it features the songs, "Swim Little Fish", "It Serves You Right", "If I Had A Girl Like You" and "Bell Bottom George."

The film title derives from the bell-bottom trousers which form part of the Royal Navy uniform.

In the same period, he stumbles on the aforementioned pair of Nazi spies using a taxidermists shop as a front, and foils their plot to blow up a British submarine, "The Firefly".

[5] Halliwell's Film Guide called it a "formula star comedy, too long and too familiar".

[6] TV Guide commented: "an overlong launching for an unseaworthy production";[7] while in the opinion of The Spinning Image "there are a few laughs to be had.