Five Guineas a Week (1956)

Britain's first musical shot in colour and widescreen (a process called Cosmoscope) is a cabaret-style featurette centred on a group of young people in Chelsea lodgings, watched over by a fatherly caretaker. Eight specially written songs are performed by stage stars of the day – most notably Georgia Brown, who later created the role of Nancy in Oliver!

Unfortunately the movie Five Guineas a Week is not yet available on HBO Max.