Emma Lavenham's description of the Thames in London as a 'strong brown god' is a quotation from T S Eliot's Four Quartets:
'I do not know much about gods; but I think that the river
Is a strong brown god - sullen, untamed and intractable.'
'I do not know much about gods; but I think that the river
Is a strong brown god - sullen, untamed and intractable.'
While on location, the school children extras were kept in a hired bus with a radiation heater because there were so few of them.