Documentary about the development of the Boeing 747 jumbo jet The 747 was a game changer the airliner that revolutionised mass cheap air travel But the first widebodied plane was originally intended as a stopgap to Boeings nowabandoned supersonic jet This is the remarkable untold story of the jumbo a billiondollar gamble that pushed 1960s technology to the limits to create one of the worlds most recognisable planes