I've just finished watching the Second part of the Great Train Robbery on iplayer and really enjoyed them both.
It was implied that Reynolds knew, or knew of, Butler. I've done lots of googling but can't find out anything about this. Reynolds said that Butler would know about trusting other men with everything. I wonder what the link was - was wondering about perhaps Reynold's father knowing Butler in the war? Random stab in dark so wondered if anyone knew.