Discussing film locations in and around London reminded me of a 1967
documentary called "The London Nobody Knows". Here is what the
Internet Movie Database (IMDb) has to say about it.

"If you enjoy the 'off the beaten track' walks and can see beyond the
banality of an everyday street, 'The London Nobody Knows' is for
you. Based on Geoffrey Fletcher's book of the same name, it follows
a path 'round London's more seedy and incongruous locations. Despite
being made in 1967, many of the locations visited still remain today,
while some are sadly gone forever. This film makes a viewer want to
go out and explore their own 'town/city nobody knows' and realise
that there is always a lot more around them than first meets the
eye. Narrated and presented by James Mason."

I was made aware of this documentary from an ongoing discussion in
the Britmovie online film discussion group
(http://www.britmovie.co.uk/). One of the group members was kind
enough to source the film for me.

I would be happy to provide copies if there is any interest in this
film.

Robert