I watched it recently on Prime. I'm not going to claim it's a cinematic masterpiece, but it is a very interesting story.
As with all "based on a true story" films you're left wondering how much poetic licence is used, but it's true that the 1985 London Pride march was led by miners.
I was a political teenager in 1985 and interested in the miners' strike because my family originate from mining stock. How did I not know that story?