No Sex Please, We’re British is a 1973 British comedy film directed by Cliff Owen and starring Ronnie Corbett, Ian Ogilvy, Susan Penhaligon, and Arthur Lowe. It was based on the 1971 play No Sex Please, We’re British, with multiple changes in the film adaptation.

Synopsis
Runnicles, a clerk in a small-town British bank (openly depicted in the film as the branch of Barclays Bank in Windsor High Street),[1][2] is horrified when a package arrives containing pornography rather than the new calculator he expected. His efforts to dispose of it, while avoiding detection turn into a farcical series of events involving a bank inspector, the police, and a local criminal to whom the pornography actually belongs.

https://en.wikipedia.org/wiki/No_Sex_Please,_We%27re_British_(film)