“Orchestra Rehearsal” is by Federico Fellini and is a ribald, farcical look at an orchestra rehearsing in a very old Roman church. As an allegory for world anarchy it has been widely hailed as a comic masterpiece of social disintegration. But what else would you expect from Fellini, an acknowledged master of dealing with society’s foibles? No less a source of film criticism than the NY Times proclaimed it “Fellini’s very best work”.