There was a fascinating (UK) TV documentary recently in which a forensic lip-reader was asked to analyse what was being said on those grainy, monochrome snippets of film taken at the time.

In one particular scene, a group of Lancastrians were huddled in a ditch, ready to go over the top on what was the first day of the Somme.

One soldier turned to his mate and, according to the lip-reader, said "I hope I'm not in the wrong place at the wrong time".