'' United 93 '' is a 2006 biographical drama-thriller film written , co-produced and directed by Paul Greengrass , that chronicles events aboard United Airlines Flight 93 , which was hijacked during the September 11 attacks of 2001 . The film attempts to recount with as much veracity as possible ( there is a disclaimer that some imagination had to be used ) and in real time ( from the flight 's takeoff ) what has come to be known in the United States as a critical moment . According to the filmmakers , the film was made with the cooperation of all of the passengers ' families . The majority of the film is presented in real time
September 11 attacks
September 11 attacks
United 93 (film)