The film depicted the problems still occurring fifty years after the development of the
polio vaccine, and shows areas where the
polio virus was still found in several countries around the world. Without vaccinations, it could re-emerge and re-infect regions where it was eradicated decades ago, and the film also notes that the first line of defense is a dedicated and continual effort by international health workers going door-to-door to ensure every child is vaccinated.
The Final Inch shows that there was an opportunity to eradicate polio from India (the last case of wild polio in India was reported on 13 January 2011 and the WHO announced the eradication of poliomyelitis in the region on 27 March 2014) and honors the work of health services and service volunteers. It recalls the devastating polio
epidemics in the United States that occurred during the 1930s and 1950s and discusses the dangers of a resurgence that still remain in the United States unless the disease is wiped out worldwide. Obstacles to eradication include lack of awareness, the large number of children requiring vaccination, geographical dispersal of the populations,
social mores,
religious beliefs, and suspicion of domestic and foreign governments. The movie shows that many of those at risk remain ignorant of polio's
epidemiology and believe the disease is "American made", fostering a reluctance to be vaccinated. ==Film festivals==