Curiosidades

The series takes place from 1916 to 1926.

Paul Copley and Alun Armstrong would later appear on Downton Abbey (2010).

The original plan was to make a feature film centred on the 1921 part of the series. Following problems with finance for a cinematic release, the project was moved to the BBC, and the decision was then made to expand from one film to four parts with characters' views changing over time.