For anyone who has ever wondered how so many supposedly brilliant minds brought the global economy to the brink of meltdown in 2007, David Sington's documentary is essential viewing. It focuses on four hard-working individuals who placed their trust in financiers, to illustrate the film's central thesis - that the dramatic increase in income and asset inequality was a significant cause of the economic crisis. Sington occasionally risks being wise after the event, but accessibly places the crisis in its context, adeptly mixing expert analysis and animated sequences to explain such basics as supply and demand, competition and growth, and the ideological importance of property ownership. What will infuriate those now paying for the expensive mistakes of key players such as Alan Greenspan - whose stewardship of the US Federal Reserve comes in for rigorous scrutiny - is the fact that so many warning signs were missed during the dot-com and sub-prime booms facilitated by free-market deregulation.

The story of the credit bubble that caused the financial crash. Through interviews with some of the world's leading economists, including housing expert Robert Shiller, Nobel laureate Joseph Stiglitz, and economic historian Louis Hyman, as well as Wall Street insiders and victims of the crash including Ed Andrews - a former economics correspondent for The New York Times who found himself facing foreclosure - and Andrew Luan, once a bond trader at Deutsche Bank now running his own Wall Street tour guide business, the film presents an original and compelling account of the toxic combination of forces that nearly destroyed the world economy.