The Physical Training Instuctor at the training camp is Mr Idwal Edwards from the little fishing village of Ferryside, Carmarthenshire, Wales. I believe he was a serving soldier possibly still so at the time of filming. I know this because he was a friend to my late father also of Ferryside. I am sad that Mr Edward's name does not appear in the credits, or have i missed it? He had two sons and a daughter, i went to school with his youngest son also at Ferryside. I feel he played a very important part in the film so again as previously said feel sad that he was not named in the credits. Thank you for allowing me to address this issue.