Bankside hoardings and a mystery movie

The building work at Tate Modern on Bankside is surrounded by hoardings that have been decorated with large reproductions of newspaper clippings about the local area. There are some intriguing snippets, mostly undated fragments that leave you wanting the fully story. This section seems to refer to a number of film and TV locations. For instance there is a paragraph saying “A film that will show South Londoners as the warm-hearted, decent people they are, instead of third-rate gangsters and crooks, is being made. The film, being shot entirely in South London, starts at the King’s Arms, Walworth Road’. Does anybody have any idea what film this refers to?