The second half of the film is a highly fictionalized account of the post-war investigation into the murders of fifty of the escapees by the Gestapo, conducted by three Americans (whereas in fact it was conducted by the Royal Air Force Special Investigation Branch).
CSI: Crime Scene Investigation | Federal Bureau of Investigation | Law & Order: Special Victims Unit | Site of Special Scientific Interest | Special Air Service | Special Olympics | Special Operations Executive | Special Broadcasting Service | Central Bureau of Investigation | Special Branch | television special | Criminal Investigation Department | Investigation Discovery | Best Special Effects | branch line | Special Boat Service | Michelle Branch | cadet branch | Branch Rickey | Special Court for Sierra Leone | Paint Branch High School | West Branch Susquehanna River | Special effect | Long Branch, New Jersey | Long Branch | James Branch Cabell | Duke Special | United States special operations forces | United States Special Operations Command | Taylor Branch |