The making of on the DVD is awesome
It looks like it was made about 10 years after the movie (probably 1st DVD release).
I had no idea that the director was hired to give it a 'heavy metal' feel to the movie... as if that's a thing. I don't think anyone said "oh yeah, good movie, real heavy metal feel to it."
But the making of tells us how some of the cuts put in weren't acting but real laughs, etc, it was interesting.
And the headbanging scene to Bohemian Rhapsody injured their necks and you can see scenes where they're acting with stiff necks.