 This is the only Hurricane Katrina documentary that actually started  filming before the hurricane. The filmmakers were shooting a  separate documentary in the Ninth Ward of New Orleans for the three  months prior to Hurricane Katrina. The Ninth Ward became an area of  New Orleans that was hardest hit by the hurricane and resulting  flood. Filmmaker Stephen Rue is a native of New Orleans and he  changed the focus of the film after the largest natural disaster in  American history had destroyed his home and his hometown