Have you seen the whole film? I have: it's shocking, gripping, disturbing, strongly acted and filmed. The subjects are certainly not glorified: the message is very clear

But I still didn't mind the SOH Bellowhead clip. Not only is it funny in itself, but by taking the scene out of context it by-the-by reduces the original participants to ridiculous cartoon characters, no bad thing on a different level. But not how the scene works in the film.

It's back to that thing about the difference between intentionally giving offence and deciding to gratuitously take it. The latter is a self-important luxury.