This is a very different film to the two earlier masterpieces that established Bahman Ghobadi's credentials as a brilliant director ('A Time For Drunken Horses' and 'Turtles Can Fly').
'No One Knows About Persian Cats' takes us on a picaresque trip through the illicit popular music scene in Tehran. The storyline is loose and there is little sense of a context for the characters. The music and its intolerant oppression by the Islamic fundamentalist state are the film's only real concerns. As such it is a movie with significant documentary interest.
Towards the end I was losing interest in the parade of musicians, but the film's final sequence delivers a real jolt (no spoilers...).