L ocations?

If I recall correctly, it was a set built at Twickenham Studios. It was my first film and I was terrified, but wonderful Colin Gordon got me through it, literally took me by the hand and calmed me down.

The front exterior of the bank was literally yards round the corner from Twickenham Studios where the film was based. The bank building itself isn't there any more but the rest of the immediate area is still very recognizable.