I'll give it to Madness - they had some hits then decided to blow it on their own film. The movie kind if disappeared, weird for a popular band - I don't think it had enough distribution. That's a common excuse but fans of the film will enjoy this as it tells their story from 1976 to 1979. The script is a series of vignettes all based on reality.
I'm not sure it's for people other than fans - it's hard to tell them apart. I recognised the songs towards the end - some bigger hits up front might've helped.