In 2006 , Greengrass directed '' United 93 '' , a film based on the 11 September 2001 hijacking of United Airlines Flight 93 . The film received critical acclaim , particularly for Greengrass ' quasi-documentary-style directing . After receiving many Best Director awards and nominations from critics ' circles ( including the Broadcast Film Critics Association ) , Greengrass won the BAFTA award for Best Director at the 60th British Academy Film Awards and received an Oscar nomination for Achievement in Directing at the 79th Academy Awards . For his role in writing the film , he earned the Writers Guild of America Award and BAFTA nominations for Best Original Screenplay
United Airlines Flight 93
United Airlines Flight 93
Paul Greengrass