I was born in a small suburb of Ilford in a rather nasty housing estate that my mother despised. She had grown up in the country, so when the war came and I was evacuated to Wales she thought I was much better off there.
It does not seem, however, that organic chemists were much worried about barriers to rotation in organic molecules in general at that time because there was no technique available to demonstrate the phenomenon experimentally.
Film is a dramatised reality and it is the director's job to make it appear real... an audience should not be conscious of technique.

