A long shot, but some of the people are fairly young so probably still around today. I have acquired some old photos from the Gaumont Cinema with numerous films and street views incluing:
Man of the Moment 1955 - Norman Wisdom
Seven Days to Noon -1950
Bring Your Smile Along - 1955 - Frankie Laine
Doctor at Sea - 1955 - Dirk Bogarde
All Quiet on the Western Front
Gentlemen Marry Brunettes - 1955 -Jane Russell
Some of them are people dressed up, other of advertising bikes, shop window adverts!! It will take me time to get through all the negative....
Here is the image anyway.....