When this film was made Trade Unions had no legal liability.Often as realistically shown in this film workers went on wildcat strikes with no sanction from the union.Striking was called the British disease.Now I am no fan of Thatcher who was our local MP.However she did bring in balanced union laws.So whilst strikes still happen they are a lot rarer and there has to be a written ballot with a simple majority in favour.This film accurately depicts the poor state of worker/employer relations till the eighties.I still remember the three day week.