A DEFINING DAY IN HISTORY. It’s an event that shook the world. Honest, unflinching and profoundly moving, United 93 tells the unforgettable story of the heroic passengers and crew members who prevented the terrorists from carrying out their plans for the fourth hijacked plane on September 11, 2001. As on-ground military and civilian teams scrambled to make sense of the unfolding events, forty people who sat down as strangers found the courage to stand up as one. • United 93: The Families and the Film: A closer look at how the filmmakers worked with the families of those on Flight 93 to honour their loved ones. • Chasing Planes - Witnesses to 9/11: Insights from air-traffic controllers, military personnel, and civilians who observed the events of September 11 as they unfolded. • Flight 93 National Memorial: An overview of the creation and significance of the national memorial dedicated to the heroes of Flight 93. • Feature Commentary with Director Paul Greengrass