Thomas Piketty on going from data-crunching to documentary

The economist talks about transforming Capital in the Twenty-First Century into a 100-minute film. While the French economist is associated with mind-numbing data analysis, he's also an acute cinema lover. Talking to Henry Mance, from the Financial Times, Piketty sheds light on his idea to turn his best-selling book into a documentary, and why it's less outlandish than it may sound.