The movie was called “Still Crazy” and it was about a band called Strange Fruit.

Basically the movie was about a band from the 70’s who re-formed when all the members were middle aged and in various states of decline!

Spall was in it with Billy Connolly, Jimmy Nail, Bill Nighy and Stephen Rea. It didn’t do brilliantly but is quite funny in its own way.

Try http://www.imdb.com/title/tt0149151/ for more info!