If you try the mentioned link at imdb you will find a comment from a fan in Australia. You can send him a personal message. I would try to do this. Maybe he is able to send you a copy. Good luck!
As a 14 year old boy my father was in a scene in a film called Mr Perrin adn Mr Traill that was aparently filmed at the Elstree studios in 1948.
The film is based on a novel about an English boarding school written by L.A.G. Strong. The main roles were played by Marius Goring, David Farrar and Greta Gynt.
Ideally I'd like to find a copy of this film - but at the moment I can't even find any record of it.
Help Please !
If you try the mentioned link at imdb you will find a comment from a fan in Australia. You can send him a personal message. I would try to do this. Maybe he is able to send you a copy. Good luck!