The Smallest Show on Earth aka USA Big Time Operators is a 1957 British comedy film, directed by Basil Dearden, and starring Bill Travers, Virginia McKenna, Peter Sellers and Margaret Rutherford. The supporting cast included Bernard Miles, Leslie Phillips, Francis de Wolff, George Cross, June Cunningham and Sid James. The screenplay was written by William Rose and John Eldridge from an original story by William Rose.
Robin Phillips, their solicitor, informs them that the Grands owner, Mr. Hardcastle De Wolff, had offered to buy the Bijou from Matts greatuncle for five thousand pounds in order to construct a car park for his nearby cinema. When they see their competitor however, he only offers them five hundred, thinking they have no choice but to accept.Instead, on Robins advice, they pretend to want to reopen the Bijou in order to force Hardcastle to raise his offer. At first, they seem to be succeeding, but then Old Tom inadvertently lets slip their overheard plan and Hardcastle refuses to budge. They decide to carry on with their bluff and go through with the opening. After a few mishaps, the business flourishes, especially after Matt hires the curvaceous Marlene Hogg Cunningham to sell ice creams and other treats at the interval. ........
Source: Wikipedia