London black taxis: Celebrities try to pass the Knowledge

London black taxis: Celebrities try to pass the Knowledge; ENGLAND: London: INT Jeff Brazier, Janet Street-Porter and Carol Thatcher taking seats to sit the Knowledge - qualification needed to become a London black taxi driver Room full of would-be taxi drivers Carol Thatcher looking at map and then answering question about getting from the Japanese embassy to Hamleys toy shop SOT Janet Street-Porter taking notes PULL OUT Trainee cabbies in room Instructor asking Jeff Brazier question SOT Brazier saying he does not know answers SOT Would be cabbies in room Instructor Clothing of Janet Street-Porter and Carol Thatcher being criticised Janet Street-Porter and Carol Thatcher Derek O'Reilly (Cabbie trainer) interview SOT - Talks of how the celebrities are doing INT TAXI SEQUENCE Janet Street-Porter driving taxi along and talking of her knowledge SOT SEQUENCE Street-Porter talking with other taxi drivers SOT SEQUENCE Street-Porter driving taxi along and talking about TV programme SOT EXT Taxi driven by Street-Porter pulling up outside Selfridges