Sparkle plot and Kurt Vonnegut theory

The DVD has arrived so I have seen Sparkle on a small screen.

It is not the greatest drama ever but the music is very strong and I still don't understand why it was not in UK cinemas ( with very few exceptions, certainly not west of Bristol)

I have now found this on YouTube, which explains the story structure

There are variations in the story but I notice towards the end as happiness is off scale there is a higher proportion of music.

I'm still looking for an Exeter venue.