Detropia opens on an abandoned residence being demolished as a wax-faced local reporter stands by, reporting on what most people in his audience already know – Detroit is an emptying, broken city, and it’s hard to imagine that will change any time soon. Detroit was once America’s most thriving city, a sprawling metropolis that was home to America’s most bankable manufacturing system, automobiles. But these days, the giant city (Detroit itself is a stunning 139 square miles) is home to something very different – a giant unemployment rate, a fractured citizenship, and the very real possibility that it will go bankrupt. Documentary directors Heidi Ewing and Rachel Grady (Jesus Camp, The Boys of Baraka) attempt to tackle the many issues facing Detroit in their film, drawing from different perspectives to form a complete and complex picture of why Detroit is, as one of their subjects grimly announces, “never coming back.” With the automobile industry decamping for cheaper labor and bigger factories in other countries (mainly Mexico) and the constant threat of competitors (China and Japan specifically), Detroit has become a ghost city, one where nearly 90,000 houses lay vacant, one where their own mayor (Dave Bing) proposes a plan to relocate citizens from failing neighborhoods into ones more prone to survival in a desperate bid to keep the city operating. Detroit is, in short, a very unhappy city.