I was in a better one than your mouldy old Valiant film Ian! When I was at OCTU at Feltwell in '64 they were making a recruiting film. We were in the gym one day when a couple of us were picked to be filmed standing beside a trampoline watching while a WRAF cadet jumped up and down on it for a minute or two. Yes I know, a tough job, but someone had to do it!
Never saw the finished film, but wouldnt mind a look now