Why the director of 'Amy' hopes his documentary makes you angry

With "Amy," director Asif Kapadia takes a look at the troubled life of singer Amy Winehouse, who died of alcohol poisoning in 2011, at the age of 27. We spoke to the London-based filmmaker by phone about the similarities and differences between "Amy" and "Senna" (his previous documentary, about the late Brazilian race car driver Ayrton Senna), and the surprises he discovered about Winehouse, who lived and died in the glare of the spotlight, yet to some degree remained hidden, even in plain sight...