This is a highly commendable film for various reasons.
It does a good job detailing contentious issues of that time in that setting, surprisingly in a non-judgemental way - the viewer is allowed to make up their own mind. The production crew did excellent work in securing the props and locations of the day, sadly only someone like myself who was there would appreciate the details.
The director and editor succeed in recreating the atmosphere of the times and what it felt like to be a recruit in the SADF. (I was once that scared boy on the train. I saw what happened to homosexual recruits.)
The director is someone who would have been a victim of the Apartheid system, yet his own views are undetectable. Kudos for being an impartial story-teller.
There are metaphors for today by way of prejudice and manipulation. You might also ask yourself what you would have done if you were him? Running away was not an option; it was police state then.
All iconic movies have a strong and/or positive ending. If this movie had that it would have reached far more people. Nevertheless, a thought-provoking watch wherever you're from.