Up the Junction
Wonderful movie version of a BBC play focussing on class issues, and playing out between working class Battersea and upper class Chelsea.
It features many young British actors of the time, and has some nice location work, so is a good depiction of London life.
This is an original US Lobby Card from the film’s initial release (1968). It’s #7 from the set of 8, featuring a young Dennis Waterman.