The BTF film about London and London Transport can now be viewed at Google Video albeit with time code across the picture. Go to:
All That Mighty Heart Beulah Library Roll L3
Its a great period piece about London when I was a teenager. Much of the footage came from an earlier production shot in 1953 which was abandoned by BTF. The material they shot turns up in
Overhaul as well as
All That Mighty Heart.
The sequence of the Stevenage housewife cleaning her home inter-cut with a bus being washed was shot by David Watkin on what was to be his last BTF shoot (he left to go and shoot features and commercials,
The Knack being his first feature). David recounts in his autobiography (
Was Clara Schumann a Fag-Hag?) that he used a brute outside the house to light the room. The unit's gaffer Frank Brice (responsible for the dramatic night scenes of the mail train coming over Shap in Night Mail) held up a white sheet to reflect the light in the room. The technique of lighting from outside a room was to prove useful in many of David's features.
I worked with BTF for six years before taking on managing their archive for a further ten years so I should be able answer most questions relating to BTF however I would commend Nick Wheat's excellent British Transport Films web site as primary source of information.