Lisztomania

[Cockney Mackem 514]

Ken Russell's baffling, obscene, startlingly excessive, crazy crazy attempt to mash up classical music with his Rock Opera approach to Tommy.

 

It's been mentioned in passing but never given a full recommendation. This article is just a tiny sample of the madness the film contains:

https://www.theguardian.com/film/filmblog/2013/feb/06/lisztomania-most-embarrassing-historical-film

For those who thought Zardoz was not quite bonkers enough.