Looking at the state of the US today, it’s hard to believe Marc Blitzstein’s rapier-sharp satire of hypocrisy, greed and corruption is over 80 years old. Its first staging by the brilliant 21-year-old Orson Welles is part of American theatre history. Banned by the powers that be and locked out of the venue, the cast – with Blitzstein himself volunteering to play piano – marched up Broadway to perform the work to a cheering crowd at Manhattan’s Venice Theatre.