Marco Ferreri's 1973 film is something else: jaded, perverted, and drenched in ennui, says Peter Bradshaw. Starring Marcello Mastroianni, Ugo Tognazzi, Michel Piccoli and Philippe Noiret, it is ostensibly about four men who get together to eat themselves to death. La Grande Bouffe – aka Blow Out – is a still-jawdropping satire of decadence and conceit.