The film basically shows how the lives of the colliery band members gradually deteriorates because of the lack of money, lack of hope and the consequences that brings to their families and how Danny, the director of the band tries to keep them together.
One of the strongest parts of the movie for me was when Phil as a clown (I had to looked it on the internet) says about god “What's He doing? He can take John Lennon. He can take those three young lads down at Ainsley Pit. He's even thinking of taking my old man. And Margaret bloody Thatcher lives! What's He sodding playing at, eh?” That perfectly reflects the anger and desperation that the miners had.
Even though music is the central axis of the film, the director makes it to tell a black comedy that shows a real fact where everything is so sad and miserable that the only thing you can do is laugh.