No point in summarising the plot of the GPO's second silliest flick. As with Pett and Pott it's a flimsy excuse for the kind of film-making fun, on-set and in the cutting room that nonetheless paid off in the Unit's increasingly confident handling of sound and picture. The film incidentally illustrates Cavalcanti's temperamental differences from Grierson, and it inadvertently prefigures a modern pattern in British advertising whereby the brand is sent up at the same time as being promoted.