A film which was shown at RMAS for similar reasons was Tunes of Glory (1960) set in the Officers Mess of a Scottish infantry battalion shortly after the second world war. It had a good cast, Alec Guinness, John Mills, Denis Price, Gordon Jackson. Like Bofors Gun it centred on a weak individual who is unable to impose his authority on a malevolent subordinate, and was written by somebody (James Kennaway) who had experienced similar events in real life.
I don't think it portrayed him as a weak individual. The battalion in question seemed to be based on the Gordon Highlanders. The Colonel, a long service regular had been captured with 2 Gordons at the fall of Singapore. One of the Gordons TA battalions had been renumbered to keep up the traditions of the regular battalion and had fought with 51 Highland Div in North Africa and NW Europe. Jock Sinclair had risen from piper to CO of the battalion.
The Colonel, clearly suffering from PTSD from his time as a Japanese POW takes over the battalion due to his substansive rank and Jock reverts to his substansive rank of Major and is the second in command. The new CO wants to impose pre war standards on a war time battalion which obviously has had other things on its mind during the last few years.
The Colonel having been in a peace time regular battalion until 1941 doesn't understand how standards have slipped. Jock thinks he has done a good job in leading the battalion in war can't understand that this is now peacetime and resents playing second fiddle and attempts to undermine the Colonel, supported by his officers who Jock is very popular with.
The Colonel tops himself, Jock feels guilty about the way he treated him as being a member of the regiment they should have welcomed him but didn't. Jock is determined to give him a good send off as befitting a clan chief.
A very good film, one of my favourites. It shows how Scottish Regiments were really not like any other Regiments in any army. More like heavily armed clans.