BBC World Service - Good Bad Billionaire

Coming soon: More tales of the mega-rich

The latest batch of billionaires includes film stars, tech bros and online retail giants

How film directors George Lucas and Peter Jackson went from zero to a billion

Your verdicts on Rockefeller, Ford, Hughes, Walton and Green

Hetty Green was America’s richest woman, but was renowned as the nation’s biggest miser

Sam Walton’s discount store Walmart is the largest retailer on Earth

The original weird billionaire, Howard Hughes went from playboy to paranoid recluse

Henry Ford revolutionised American life by making mass-produced cars affordable to all

John D Rockefeller believed God wanted him to get rich – so he obliged

A new season with a difference: Famous dead billionaires and how they made their money

Mining magnate Eike Batista was Brazil’s richest man, but corruption led to his downfall