After watching the script on the plane, Devon Sawa glanced at the airplane engine outside the window every few minutes.
Many characters in the film are named after the director and actors of the black and white horror film.
In the film, Alex’s flight departure time is 9:25, his birthday is September 25, his seat number is "I" (the 9th letter of the alphabet), and he is in row 25.
The news footage of the airplane exploding in the film is from a real air crash in East Morridges, Long Island, New York in July 1996, when TWA Flight 800 crashed due to a main fuel tank explosion just 12 minutes after takeoff.
The music throughout the film comes from John Denver, who died in a plane crash.
The first candidates to play Alex and Claire are Toby Maguire and Kirsten Dunst.
The aviation map board in the airport is a CGI special effect added later.
